Car had 50 k miles on it....old

Picking up the car from Fox wasn't hard, there's a shuttle from the airport. Our car had a lot of dings & scratches, but that's not a big deal, it worked just fine. HOWEVER, returning the car was infuriating. They are not located near the other rental car drop-offs, so following signs at the airport for "Rental Car Return" is an exercise in futility (it would have been nice for the staff at Fox to let us know returning the car wasn't sign-posted). We finally found them with out GPS, and while they advertise being open 24 hours, that's only sort of true. We arrived and it took 20 minutes to find a staff person. I finally found someone we could check the car back in with and had to tell other poor customers wandering aimlessly where he was. The car return experience was frustrating.

They refused to give us the rental car we had chosen and then were very aggressive when we insisted that they give us the midsize SUV we rented instead of a compact car. Horrible service at the counter despite telling them that I needed to get on the road to rush to a family medical emergency. I will never rent with them again.

The car was not full tank, everything else was okay

First of all, there was not much of a line and there were several people working desks. It took us nearly an hour to get our car. It was the slowest process I have ever experienced to rent a car. Then I had requested a 4 wheel drive or equivalent auto, it was not a 4 wheel or equivalent and we were going into the mountains to Steamboat in a blizzard. What was requested was not fulfilled. I would not rent a car from Fox again.