My primary goal with this review was to test a curved manual treadmill ('CMT') as a general concept. I was lucky enough to get three different models to play with. And at the end of the day, I am absolutely convinced that these things are the cat's pajamas. I drank the Kool-Aid. My love of running outdoors has not vanished, or diminished at all. But my appreciation for the alternative has significantly increased. Read the full review for all the info on these awesome machines, and which one is my favorite.