"I've been looking at workspace / desk options for a couple of years. I first saw the concept of "Walk / Work" with a product made be SteelCase. Theirs is a nice looking unit with a built-in treadmill, but two major problems: 1) Extremely expensive, and 2) The built-in treadmill is essentially featureless. So I kept looking and came across TrekDesk. I dropped some hints with my wife about the TrekDesk for Christmas and sure-enough, there was a huge box under the tree on Christmas morning. I put the TrekDesk together in about 25 minutes with only minor tools, and not-so-handy handyman skills. I found the TrekDesk simple and easy to put together... some reviews here suggest that it is difficult to assemble. Personally, I'm all thumbs and found it very simple, with good pictures and diagrams in the assembly directions. Despite the advice at TrekDesk, I thought it would be a good idea to put the speed up on the Treadmill to 2-3mph (seemed slow compared to Gym workout), however i found within a few minutes that was much too fast. After 6 weeks of near-constant use, I find that anywhere from .8-1 mph is perfect for me. That is the speed (for me) that I can carry on a very normal conversation, type comfortably, file, sort, etc. At that rate, I get more energy than I give... overall a very comfortable pace. By the way I bought the NordicTrak Elite 9500 pro for about $850 and find it to be a great match with the TrekDesk. The tread portion of the 9500 is long enough that I can actually run on the treadmill for my workouts without needing to move or adjust my desk. Six weeks in: 1.) Very Even Energy -- no afternoon lows, or mid-morning blahs... I have consistent energy during the day (averaging about 5-6 miles / day) 2.) Low Back Pain Gone -- I've had chronic lower back pain for years. I'm now convinced that pain was from tight hip flexors caused by sitting in conventional chair all day. My back pain isn't better, it is completely gone. 3.) Weight Loss -- I wasn't expecting or wanting to lose weight, so not a big surprise there for me. If I ate the same amount of food and made the same choices I used to make... I'd probably be losing at least 1 lb / week. I view this more as a "eat-whatever-you-want-and-not-gain-weight" proposition! I thought that I'd want to keep my old sitting desk and have the TrekDesk for a couple of hours each day, but I'm 100% on the TD now (averaging 25-30 miles / week), and no longer have a sit desk at the office. The office staff thinks I'm a bit wierd, but I've never felt better and had more fun at the office."