LifeSpan Fitness TR800 Portable Walking Under Desk Treadmill. This was 800 (7 years ago?). I've heard good things about new treadmills. The worst thing about t

LifeSpan Fitness TR800 Portable Walking Under Desk Treadmill. This was 800 (7 years ago?). I've heard good things about new treadmills. The worst thing about the one I have is that it's 96 lbs and heavy to move. When you move it out of the way to sit down it is a real task. What you want is something you can setup easily and use and just put it away. Heck. I'm considering to upgrade. I am also considering to get a new one that goes up to 8 mph where this is locked at 4... Maybe there is safety concerns but we'll see. (8 mph?...maybe I should get a real treadmil already.)