Bought this treadmill about 18 mo.'s ago in July 2007.

The Good: Solid, sturdy treadmill. Clearly not a cheap piece of junk. Not difficult to assemble. East to fold up (we don't really use that feature but I've tested it and it's not a problem).

The Bad: If you get a defective one, you're stuck; good luck trying to get it repaired, and good luck trying to return it. The problem with our treadmill (Bowflex Series 3) is that the running deck is at a permanent incline/elevation even after an attempted repair. First, we had to wrangle with Bowflex to get them to send someone out to look at it. When Bowflex did send someone out for us, the guy told my wife that the treadmill deck angle was "normal" and that there was nothing wrong with it. Luckily I work close to home, because I had to come home from work and argue with the guy! When I got my 6 foot level out and showed him that the degree of incline was in excess of 15 degrees, he finally relented and agreed that there might be a problem. He then - lo and behold - discovered a problem with the motor-mount and bowflex agreed to send a part and have it repaired. It's been a year since the "repair," and it's better - at about a 5% elevation now - but still not right. I also use the treadmills at the gym in my office building and it's clear to me that our treadmill running deck angle is not "normal." I'm all for running on hills, but not 100% of the time!! So, I now have a board under the rear wheels to help make the treadmill level (in case you're wondering, the floor under the treadmill is perfectly level). Anyway, just what you want with a $1000 treadmill right, a board under the back end.

I'm not saying that all Bowflex treadmills are bad, but I do caution you that you may be gambling with your $1000 because you risk getting a defective one. You also risk not having the company repair the product properly even if they are willing to send someone out to look at it. Also, our problem occurred about a year ago, but I've seen a recent reviewer state that bowflex now refuses all responsibility for treadmills sold through Amazon. If I were purchasing this treadmill, I would sure want to find out whether that's true before plunking down my grand.
Buy Bowflex Series 3 Treadmill!