Only get this one if you treat it gently. At the $500 price point, it makes some sense but just if you are going to be a light user. Those who are serious about their exercise need to get a serious machine.
If you are a serious user, you need to look at more serious equipment. For the more casual user, this one might have some application. Proform didn't go overboard on the belt and it has their newer drive system in it so if you baby it, maybe it will be your baby.