This is my third Nordic Track treadmill. I've been using them for about 30 yrs. We bought this one last winter and are very pleased with it. It responds quickly to changes in speed and elevation and the electrical panel shows your progress in clear detail. It is very well built--very sturdy and the belt moves smoothly. The treadmill is easy to use too. You just press the desired elevation and desired speed and off you go. Running is fairly easy on the joints because the treadmill has the right amount of cushioning too. Our last treadmill lasted quite a few years and I imagine this one will too. I do recommend getting a service contract though after the warranty expires. We did have a problem with the electrical panel on our last one and had to call for repair which was done quickly and at no cost to us because of the service contract. We don't anticipate any problems with this one, but it's nice to have. Just about my only complaint with this treadmill is in regard to the fan. Most treadmills nowadays do have a fan in the front panel but I find that the fan in this treadmill is very weak and not worth using. Other than that, I have to say that I'm quite satisfied with this new model and look forward to working out on it each day.