It's hard to imagine why so many people had bad experiences because mine was great. The shuttle was easy to take and they are constantly running so you never have to be standing there waiting for one. It's really very easy so don't worry about that part. I got to the Rental Car Center around 11 am on a Friday and there was no line. I booked on Avis.com an economy car and it turned out to be a cute, brand new VW Beetle! I felt very cool. The prices were really cheap ($20/day with all the taxes) and I had no problems with the car. Returning it on a Wednesday at 9:30 am was a breeze, too. Pulled right in, no waiting, no problem. Hopped right on a shuttle outside and was at my terminal in 10 mins. Employees were very nice, too. I would definitely use Avis again.