This was my first purchase of a treadmill about 8 years or so ago. For years I used this treadmill every day at a heavy weight and light weight. I love the speed and incline of this treadmill. The quality is obviously very good. For years I used this on a daily basis. It doesn't collect dust, lets put it that way. My complaint about the product is that the heart rate monitor has never worked accurately. While holding onto the bars I would see it start to calculate but no matter what I did it would never provide me with the answer as to what my heart rate was. Now it doesn't work at all. I suppose it was faulty. I have never used the iFIT so I can't comment on that. Would like to buy NordicTrack products in the future. The older I get the less I want to have to buy twice. You get what you pay for.