Buy this over the Audiostrider 990 Pro. You loose some plastic and $150 in cost when you do.
The NordicTrack Audiostrider 990 is another of a long line of front ramp/rear drive ellitpical produced by Icon Health and Fitness marketed under the NordicTrack, Proform, Epic, Reebok and HealthRider brand names. These ellipticals are long on features and value and short on warranty. All in all they are a very good value, especially when you consider other machines in the same price range.