Love it!  Get painless exercise while watching TV.
I bought this to use at the office under my desk.<br />But then I had knee surgery so I used it mainly at home for rehabilitation.<br /><br />Now I use it for exercise while I'm watching TV.  I just leave it in front of my viewing chair so whenever I sit down my feet end up on it and next thing you know I'm pedaling without even thinking about it.  I can easily do 45 minutes while watching a show on tivo and it's painless.<br /><br />Others have commented that the unit will slide across the floor, and that's true it does slide a little bit gradually as you use it, but that's not a product defect as I see it.  Other than using glue or screws, it is unreasonable to expect that any device resting on the floor isn't going to slide as you apply a large lateral force to it with your legs.  However, fixing this is TRIVIAL!  Just get a couple 4-6 foot lengths of rope, strap, or something similar and loop one around each side of the rear bar on the unit.  Loop the other ends around your chair leg(s) and the unit won't go anywhere.  This has worked like a charm for me and takes 10 seconds to put on or take off.<br /><br />UPDATED:  Well, I pedaled this thing to death, literally.  The pedals started grinding and slipping after about 6 months of nearly daily usage for about 20 minutes each.  I opened it up and there are two gears that form the main mechanism.  The teeth on the smaller gear had been rounded down until they no longer interlocked with the larger gear.  Had to trash it.  Maybe I should've splurged for the magnetic version.
Rating: 4 stars