Rental agent wasn't even there, so couldn't pick u
Cons: Rental agent wasn't even at the desk. Waited 30 min and tried calling the phone number left on a sign which went straight to voicemail. The agents at the other car rental companies' desks nearby said they hadn't even seen anyone come in today.
I gave up and rented a car from National instead.
Cons: No one was at the counter and there was no note as to when they would be back. Obviously I couldn't pick up the car I'd reserved. This was at 1:30 in the afternoon on a Friday. Thankfully Avis' counter had a rep there and was able help me out.