I purchased the Air Climber because the advertisement lead me to believe that it was easy and not hard on your joints because of the "Step On Air" concept. This was not so, I experienced a bit of pain in my knees. When I called to return it the operator was rude, saying I should have consulted my Dr. first and that the commercial does not state that. She was also snippy when I discovered that out of a payment of $49.49 I will only be receiving $24.54 back, stating that "If I had paid attention to the commercial I would have noticed... read full review »