The process was very simple, but the rental staff will routinely ask if you want to add insurance or pre-purchase a tank of gas, etc. I understand it's their job, just say NO and they won't pressure you. There was almost no waiting, and the whole process, including getting the car, took about 15 minutes, which was very smooth.

No waiting in line, rent as soon as you enter.

Pretty good overall, but the shuttle bus from the airport to the rental location was hard to find. The car was fine, not new but not old either.

The car was new and the rental process was convenient.

I arrived quite late, but there was a free shuttle from the airport to the rental office. The queue was reasonably fast, and the staff was quite friendly. They tried to sell me an upgrade and extra insurance, but I declined. There were two staff members at the car lot who let me choose my vehicle. By the time I got there, only a Sonata and a Charger were left. I quickly chose the Charger (the new model Charger is really cool!). I'm glad I didn't go for the convertible, as it rained nearly every day after I arrived.