Great treadmill, excellent cushioning, great ONE touch speed and incline controls on the handle bars. I have only owned this treadmill for a couple of weeks now. I ran a 5K run the first time I was on it and it performed well. I assembled it myself. It is very heavy and sturdy and took over an hour to put together but the directions were very clear. The 6.6 Xterra is my first treadmill and I love it!!