I have been renting cars and flying for years and I have NEVER experienced such poor service.

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.

Customer service needs to work faster. The pickup process took almost 1 hour. The car was dirty and there was dings on the windshield, which can be dangerous if no repaired.

I waited over an hour for a customer service agent. This has never happened in my life at a car rental agency. Once I got to customer service it was very fast, the agent was very courteous, professional, and efficient. He was one of 4-5 other agents, but the other agents seemed to take much longer. This appeared to be part of the extreme wait time. I also did not get the car I wanted. I reserved a 4-door sedan, but got an SUV. I was so tired and hot (it was 90 degrees in Denver) from waiting that I didn't even ask for a different car, I just wanted to get out and leave. Drop off was much faster, but I noticed that the line for others to get their cars in the morning, was just as long as it was for me in the afternoon when picking up the car. The shuttle to the airport was ready and waiting.

The car was not full tank, everything else was okay

Worst customer service ever Tried to extend twice(the night of being late and the next morning) Dropped of the car and it was an extra $200!!! Tried to use my debit card for the extension and they wouldn’t do it while I was the location in denver like customer serevixe said I could. On top of all that, I picked up the car and drove into bad snow weather and had to purchase windshield fluid and pull over every 5 miles to clear my windows so I could see!