We have something very similar to this
Keys model. It gets reasonably consistent use. It is very sturdy but has few bells and whistles. No problems. Make sure you plug something like this into a surge suppressor. See the mfr website at
keysfitness.com. I understand they also manufacture the Smooth brand, which gets some favorable reviews.
I don't think that the width of the tread is that important, but the diameter of the rollers might be a consideration. Wider treads (within reason) only make the motor work harder.
