The first car we received (Chevy Trax) was an underpowered car that had poor handling. After driving for a day it developed a slow tire leak that required adding air every day or two. The Alamo roadside assistance people we spoke with were all very helpful. We were in a remote location near the grand canyon north rim and they dispatched a new car from Las Vegas over 100 miles away within 24 hrs. The new car worked perfectly (Ford Escape), drove very well, and had no mechanical issues. When we returned the car at the Phoenix airport, the person we spoke with asked us how the rental was and we explained the issue and how Alamo helped us get a replacement car. Without asking, she gave us a substantial discount on the rental cost because of the car trouble which was unexpected but greatly appreciated. Overall, the customer service and roadside assistance people were all nice and very helpful. The one problem was that the communication between the roadside assistance people could be better. For example, when we talked with one person and they went off shift, we had to go through the whole story again with the next person that took over the case. Also, the tow truck driver who brought the new car (who was very nice) hadn't been brought up to speed on the case and didnt know that we were going to be away from the car when he brought the replacement car. It all worked out though and we were impressed by Alamo's customer service and very happy with the replacement car.