I was worried it would slide and / or be noisy based on a couple of reviews... neither was true. Just got it today and am already addicted... what a great way to get some exercise while computing and tv watching! I'm already placing an order for me to take one to work. The one thing semi-negative is that with the higher tension, the pedaling is a little more difficult to keep going steadily / straight...but I'm just adjusting the angle of my attack for those times, so no worries. I'm happy to have found the product - and it arrived in only two days w/ free shipping and 10% off :-)all good, all around!