The PS800 with the adjustable cushioning is a great choice. We hope True keeps pushing features downline but until then, this is the most full featured True at the best price.
The warranty for the True PS800 is what you expect to see in a high quality treadmill. Labor is covered for 1 year, parts for 7 years, the motor for 30 years, and the frame for life. This is the kind of confidence you hope a manufacturer will display, when you're purchasing their equipment.