Easy In, not so easy out. Picking up the car was a breeze and the customer service was pretty decent. However returning the car is not the easiest. Finding the rental car place proved to be a bit confusing. Its not exactly next to the airport and there aren't many signs telling you where to go. If you are not from Cleveland and don't know your way around you may have some trouble finding the rental car location. However you can do like I did and just follow a shuttle bus. You don't want to burn all the gas you just bought to fill the tank up.
Upon returning the car we were informed of some extra charges for coverage that was not properly explained when we picked up the car. However the manager was very nice and took the charges off of our bill. He gave us his card and told us if we needed anything else just to give him a call. I'd say he provided us with excellent customer service. Although we were initially jaded about extra charges, this went away immediately once the manager resolved the problem.
I'd rent from Avis again because of the friendly employees and fairly quick service. Also the car we received was very fuel efficient, which is a big plus.