I use it at the gym, I don't pay attention to things like model numbers while cardio'ing! I did look at them once online, as I was interested in getting one for home use - but the $3500.00 price tag threw me for a loop.
It's a wonderful piece of equipment for a cardio workout. I've used it for about 10 months, along with the Precor Crossramp. I enjoy the gliding motion, it doesn't stress my joints at all. I don't believe it's offered any results other than being a wonderful tool for fat burning and cardiovascular health.