WORTH IT! Yes, it wiggles a bit but only when someone leans on the end of a wing otherwise I don't notice anything. Yes your feet will hurt the first few weeks but mostly when you stand instead of walking. I found a new pair of Teva sandals are the bet instead of walking shoes. The desktop is ample enough and the height adjustments work just fine. Assembly time was about 30 minutes and a power drill was needed. My walking speed is best at 1.6 MPH and I get in about 4 miles per day with some standing. It does increase your appetite!