I've had my Cheetah model for over six months and I'm getting more enjoyment out of it every time I ride...which is almost every day. It's relaxing, easy on the eyes, and allows for as much or as little physical activity as you like. Twenty-five to thirty-mile rides are common, and they can be customized to your goals.
Runners, walkers, and other bikers all leave positive comments and give thumbs up. On my normal road bike...which I still use...I get to see a lot more territory than I am accustomed to. I'm 6'4" and 210 pounds, and the Cheetah provides greater comfort.
I have had no mechanical problems or issues out of the box. I bought a great rear light and some lightweight trail splash guards as accessories. This is one of the best, most useful, and fun purchases I ever made.
