AVIS provided excellent service. My English isn't very good, but the young man at the counter was very patient and didn't speak too fast. I had booked a car with a full tank of gas, but when I was about to drive off, I noticed it was only 3/4 full. After mentioning this to the rental agent, he assured me it was fine and that he would inform the drop-off location. When I returned the car, they accepted it with 3/4 tank, no questions asked. Americans are very trustworthy, and this was just one example.