I suffer from a chronic blood disorder and need to do some cardio exercise. I’ve purchased this treadmill mainly because of its running surface and footprint when folded. After using it for a few months, I’m quite satisfied with my Roadrunner treadmill. The motor is very quiet and operates the belt smoothly. The orthopedic running belt is just great, as it really does reduce pressure on the knees when walking on it. The console of the is very clear and easy to navigate and I’ve bought a chest strap to be able to monitor my heart rate without keeping my hands on the grips and I think my results seem to be quite accurate. So far, so good.