I'm a gold member with Hertz and I sometimes use them when i go out of town as their basic car is usually cheaper than taking mine after the difference in gas. Sometimes I like to have something different to drive and get one of the upgrades. This time I took the Camero SS and it was really fun to drive around on the mountain roads in Prescott for the day. The Camero SS cost me about $45 plus taxes for the day. Since I have a gold membership my car was waiting for me when I got there. They have your name on the board as you walk in telling you where your car is located and it is also in lights over the car when you get to it. You just get in, adjust the seat, mirrors, etc, and drive over to the exit where they do a quick check of your license and credit card then ask if you need any upgrades etc. I always buy the full tank of gas because it's cheaper then I can buy it at the pump with my AAA discount and you don't have to have any gas in the car when you return it.
They have a nice selection of cars depending on how much you want to spend. The basic Altima is usually about $18 a day and you can upgrade from there. My favorite is the Penske GT.
The Gold card is free so get one if you need to rent a car and you can run through the airport instead of spending 2 hours in line upstairs and having to listen to them try to upsell you.