The ProForm 590 T Treadmill is exactly what I was looking for - heavy, well made, easy to use - and it works. I've lost 12 pounds since I began to keep track of my weight loss, and I feel great. Putting it together was easier than I expected, and I managed to do so alone (but I've yet to finish - the "folding" feature of the 590 isn't really much of a space saver, and probably does take two pairs of hands, so I've elected not to install it at this time). It's relatively quiet, I can watch tv while I use it, for example. A couple of things I don't care for: when I opened the box it was shipped in, a few pieces of broken plastic fell out. They turned out to be broken off the housing, and are thin and apparently fragile. Also, the pulse monitor is effectively useless - unless my pulse really does change as much as 50% in only seconds, multiple times through an exercise cycle. I'd just as soon not have a pulse monitor, if I can't trust it. Finally, the idea that I have to unplug the thing between sessions really bugs me. I live in an apartment with 2 televisions, 4 monitors, 1 server and 6 workstations - none of these sophisticated electronic devises have to be unplugged when turned off, but the relatively simple treadmill must be? Bad design ProForm! All in all, though, the 590 does what it's supposed to and is easy on my knees (and I really am losing weight!). I'm not sorry I bought it and would recommend it to friends.