Our Hyundai Accent was super clean and looked brand new. We rented the car for four days at $8.99 a day, which after all the taxes and concession fees (thanks Sky Harbor for tacking on $6/day) came to about $76. A screaming deal!
The gentleman at the counter was friendly and efficient. The line moved fairly quickly. Make sure you check over your car carefully before, and note all defects on the paperwork that you give to the attendant. Drive carefully. Fill up the tank before you return your car.
For more tips and info, read the review of Jeffrey S. from Midvale, Utah.