Worst

The first car they gave me was not cleaned both inside and out and had a loud humming noise in the back rear tire. I went back to Fox the next day to get a different car which was cleaned. I wan not given a credit for the first day. I also returned the car a day earlier and they did not give me a credit for an early return but charged me $20.

There were only 2 people working the counter when I arrived. I waited in line for 15 min before it was my turn even though I was first in line. It took another 20 min for the person to try to upsell me to a larger vehicle, 4-wheel drive, GPS, insurance, etc. Then I had to wait another 30 minutes for my car to be ready. It apparently was the only mid-size car they have and instead of just upgrading me for free, I had to wait 30 min for them to wash, vacuum, and fill up the only Camry in their fleet. And they weren't exactly in a hurry.

Booking was easy. Not sure why the pricing changes so drastically from day to day but the price I paid was very good. There was no price drop this time after I made my reservation.

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.

The car had plenty of room but the service was the worst I have ever experienced. The management at the denver location could have cared less about any issues with my rental. She even walked away from me while I was talking.

I was told to fill out the vehicle inspection form myself and hand it in at exit, but there was noone to hand it to. The windshield had a small chip, that i marked on the sheet. While driving the car it turned into a larger crack. I want to make sure i am not charged for this, but haven't heard anything yet.

Finding a car at a good rate was easy. I also needed a child seat which i requested, but it was not tied to my reservation at all.