I've used Enterprise for years and don't like anyone else. That said, I found one of their policies to be a disadvantage (or an advantage if you're lucky and persistent). If you have a reservation and try to change any part of it (for instance you want to pick the car up an hour later or earlier) they rebook it at the rate in effect at the time of the change. For me that costed about $70 on a weekly rental. But I've also used it to my advantage. Now when I book a car I check the rates daily until the pick-up date. If the rates drop (as they often do) I modify my booking to lock in the new rate. This has saved me a good bit of money.