"I have had my Sportscrafters mini-roller for about 4 days, and have been riding my Rover on it about an hour a day. It gives me a great workout, and since the temperature in Atlanta this week is around 10-25 degrees F, riding indoors can't be beat. The product is well made, easy to set up, and when not in use, can be tucked away anywhere because of it's compact size. My heart rate average using the mini-roller is actually higher than when I ride on the road, and I am not even in the highest gear on my Rover. This product is fantastic."