I've been looking for walking thread mill for some time, and I settled on to this one. Only after I put it in my cart, I realized it had a permanent incline of 5%, that cannot be adjusted. I've been looking for an adjustable incline. Given the deal I got, I just went ahead with it thinking I probably won't adjust incline often. There was hardly any assembly--it was basically take it out of the box and plug it int, and pull of the plastic cover from the battery and you can use it. I've been using it consistently since then. It is a great value for the money, and I have no complaint!