Theres way to many machines for me to know whats worth it vs. what to stay away from. I try to work on cardio, at the moment, I stear clear of the treadmill, no use in trying to walk. My wife enjoys the row machine, ski type machine, bicycles, so I just join her. I will do some lightweight curls but thats about it. I have been giving it about an hr a night this week. Not sure what goals or what time frame there should be.