It came down to this model and the Sole F85 but at the end it was the positive reviews from Health Magazine and Runners World on the TR 4000 that pushed me over the top I use it for about four to five hours a week, about every other day and I have noticed nothing but good things so far. The belt width is about 20 inches wide and the 60 inch long is perfect for all out sprints. Some other treadmills are wider like the F85, some are smaller but 20 inches seems to be the industry norm at this price. I have begun to notice after many uses, that the belt and deck offer a very nice cushioning system. There is an assortment of programs that come with this treadmill I have just begun to utilize, such as the 7 sports training programs. They really help you get a positive workout, warm-up to cool down. I recommend trying each program and seeing which one suits your lifestyle and fitness regimen. What appears to be unique to me from my research is that this treadmill allows you to decide programs based on your interest level...weight loss, training etc... It has 15 incline levels to compliment speeds of .5 mph to 12 mph which is great for interval training. The motor carries a lifetime warranty and is extremely quiet. I have the freedom to listen to my music through the treadmill console, which is not over powered by the noise of the motor. Other models I have tried in the past have had very loud, almost overwhelming sounding motors. I have also begun to use the LifeSpan Fitness Club that came with the unit. I had to speak to a representative from the actual company for information on how to use it. This perk allows you to record all aspects of a workout, and view it electronically through the internet. It really helps when goal setting to actually see your results and what you should be working for. This recording system keeps readings of my progress and outlines fitness goals. If you have this capability with a LifeSpan Treadmill, I would recommend taking the time to implement the LifeSpan fitness club into your workout routines. I would recommend this treadmill to anyone looking to take their workouts to a new level.