The Gold's Gym Stride Trainer 450/450i is the best of the worst for the money.
For an extra $50.00 or so you can have the front drive brother to the 350i; enter the 450i. It might be a tad more stable and it has a slightly more capable console with tablet holder. Although there is only a slight variance or gain in performance (if performance can be quantified at this level) certain users might prefer the front over the rear drive. The front drive is certainly easier to load.