I had a recombanant exercise bike for about 10 years and really liked it. My wife, who uses a wheelchair, also could use it. My only issue was that I had a tendency to take it easy, probably because of the riding position, but that was really my flaw, not the bikes. I exchanged it for an upright bike, with a desk, so I can use my laptop while riding. I probably spend less time on the upright bike, but I think I ride harder for that shorter period. I have also had a treadmill, and even though I do like to walk, I prefer the bike to the treadmill.