Renting Beyond the Big Three: Check More Than the Price
My experiences with SIXT, NU and Fox taught me to investigate the location, cancellation rules and pickup process before deciding whether a lower rate is really a better value.
When most travelers think about rental cars, they begin with the familiar corporate families.
Enterprise, National and Alamo. Hertz, Dollar and Thrifty. Avis, Budget and Payless.
I have already explained those relationships in Who Really Owns Your Rental Car Company?. But those brands are not the only choices that may appear when you search through a travel portal or rental-car aggregator.
Depending on the destination, you may also encounter SIXT, Fox, NU Car Rentals, ACE, Advantage, Routes, NextCar, Green Motion, Easirent or a local independent operation.
Some may offer a lower rate. Others may offer a better vehicle or more convenient location. A few may provide exactly what you need.
The challenge is that renting beyond the Big Three requires more than comparing daily prices.
I learned that through three very different experiences.
SIXT in Crete: the best value was not necessarily the lowest price
Approximately 12 years ago, I rented from SIXT at Heraklion Airport in Crete.
The vehicle was nothing exotic—something along the lines of a Fiat Panda. It was a small, boxy European car that fit the reservation and the trip.
The important part was everything around the car.
SIXT offered the best overall value for that particular trip. The airport location made pickup easy, returning the vehicle was equally straightforward and I received the category I had reserved without any problems.
The company placed a temporary authorization hold on my credit card. It did not create an issue for me, but it reinforced another detail travelers should verify: how much available credit the rental will temporarily consume.
That Crete experience was roughly 12 years ago, so I would not assume that every current SIXT location—or even the same location today—operates identically. What remains relevant is the decision process.
It was not simply a cheap rental. It was the right combination of rate, vehicle and convenience.
A trusted travel portal is not an endorsement
My experience with NU Car Rentals in Denver began with an assumption.
I found the rental through Capital One Travel. Because the company appeared inside a booking portal I trusted, I reserved it without researching the individual rental operation or reading its reviews.
I assumed the portal would primarily do business with companies offering an acceptable customer experience.
That assumption cost me money.
When I later needed to change the reservation, I discovered how restrictive the terms were. My interaction with NU provided no flexibility and, in my experience, very little empathy. The response essentially amounted to: those are the rules, and that is too bad.
I canceled the reservation, lost money and booked with Fox instead.
Only afterward did I examine the reviews for the Denver operation. What I found surprised me and made me question why I had not researched the company before booking.
That was another lesson learned.
A travel portal can provide convenient search results, pricing and payment options. Its inclusion of a company does not mean I should treat that listing as a personal recommendation or substitute it for my own research.
Read the rules before paying
The rental rate deserves attention, but so do the conditions attached to it.
Before paying, I now want clear answers to several questions:
Can the reservation be changed?
Is it refundable?
What is the cancellation deadline?
Is there a prepaid amount that will be forfeited?
Who handles a problem—the travel portal or the rental company?
What card hold or deposit will be required?
Do the rules change if I use a debit card?
What happens if my flight is delayed beyond the location’s operating hours?
A more flexible reservation may cost slightly more. That does not automatically make it the worse value.
Plans change. Flights move. Trips get shortened. A lower prepaid rate can become the more expensive choice if changing it means forfeiting the entire payment.
I remain loyal to my checkbook, but flexibility has a value that belongs in the calculation.
Read reviews for the individual location
Rental-car reviews require some perspective.
People are more likely to post after a terrible experience than after collecting an ordinary sedan and returning it without incident. One angry review does not automatically condemn an entire company.
Patterns are more useful.
I look for repeated references to the same problem:
Excessive counter waits
Infrequent or confusing shuttle service
Surprise card holds
Aggressive sales pressure
Disputes over insurance requirements
Unexpected fees
Difficulty reaching customer service
Vehicles unavailable despite confirmed reservations
Delays during the return process
I also pay attention to which location the reviewer used. A company’s operation at one airport may be managed very differently from another location bearing the same name.
For example, NextCar’s current Miami instructions tell arriving customers to reach the Rental Car Center and then call or text for another shuttle. At its Prudhoe Bay airport location, the counter is listed inside the airport Rental Car Center.
The logo is the same. The pickup journey is not.
That is why I research the location rather than relying exclusively on the national brand.
“Airport rental” does not necessarily mean at the airport
The words airport location can describe several different arrangements.
The rental counter might be:
Inside the terminal
Across the road from baggage claim
Inside a consolidated rental-car center
Reached by an airport-operated train or common shuttle
Reached by the rental company’s own shuttle
Located several miles away on a standalone property
Those distinctions matter.
An offsite rental is not automatically a bad rental. It simply adds another transportation step—and potentially another wait—to both ends of the reservation.
Before booking, I want the exact street address. I look at it on a map rather than relying on the airport name in the listing. Then I read the pickup instructions.
If a shuttle is involved, I want to know:
Where do I board it?
Is it operated by the airport or the rental company?
Does it run continuously or only after I call?
How frequently does it run?
Does it operate during my arrival and departure times?
How much additional return time should I allow?
Fox in Denver: the cheapest price came with a time cost
After canceling the NU reservation, I booked with Fox Rent A Car for the same Denver trip in October 2025.
Fox offered the lowest price. I reserved an ordinary midsize sedan and received what I reserved without a problem.
The location was the trade-off.
Fox operated from a separate facility reached by its own shuttle rather than alongside the rental companies I expected to find together. Pickup involved some waiting, and only one person was working the counter when I arrived.
None of that made the rental a failure. The vehicle was fine, the price was good and the reservation ultimately worked.
But the experience required more time.
Because I paid attention during pickup, I knew not to treat the return like a simple terminal-garage drop-off. I allowed additional time for the offsite return, counter process and shuttle ride back to the airport.
That planning kept the inconvenience from becoming a crisis at security.
I would rent from Fox again. I would simply verify the individual location and decide whether the savings justified its transportation arrangements.
Pickup teaches you how to plan the return
Travelers naturally concentrate on collecting the car because that is the first problem in front of them.
The return may matter more.
A slow shuttle after landing is frustrating. A slow shuttle while you are trying to catch a flight can become expensive.
During pickup, pay attention to:
The actual shuttle travel time
How long you wait before the shuttle arrives
How many vehicles appear to be operating
Counter staffing
The return-lane process
Whether the shuttle waits to fill before departing
Morning or after-hours procedures
Use that information to plan the final day.
I would rather return the car early and spend additional time inside the airport than stand beside my luggage wondering when the next shuttle will appear.
Two rentals, two different kinds of value
My Crete and Denver rentals both worked.
In Heraklion, SIXT offered the best overall value. The airport location, easy collection and uncomplicated return made the entire process feel efficient.
In Denver, Fox offered the lowest price. The vehicle was satisfactory, but the separate location and wait times made the rental less convenient.
Neither conclusion establishes that SIXT is always better than Fox—or that either company will provide the same experience at another location.
It establishes something more useful:
Price gets my attention. Location determines whether the deal still works.
My Curated Verdict
🟢 GO FOR IT:
Consider a company outside the major U.S. rental families when the complete package offers good value. Compare the rate, vehicle, location, policies and operating hours—not merely the logo.
🟡 EVALUATE:
Investigate any unfamiliar brand, portal rate or listing described as offsite. Read the individual location’s recent reviews, map the address and understand exactly how pickup and return work.
🔴 SKIP IT:
Walk away when restrictive terms, poor communication, troubling review patterns or inconvenient logistics outweigh the advertised savings.
Final thoughts
I am not opposed to SIXT, Fox, NU or any company simply because it operates outside the familiar U.S. rental families.
SIXT gave me a very good experience in Crete. Fox provided the vehicle I reserved at the lowest price in Denver. The NU booking taught me an expensive lesson before I ever reached the counter.
The broader lesson is not to fear unfamiliar rental companies.
It is to investigate them.
Check the cancellation rules. Read reviews for the individual location. Map the pickup address. Understand the shuttle. Verify the card hold. Then compare the complete value against the familiar alternatives.
Trust the portal to show you choices.
Trust yourself to investigate them.