I am hoping for general feedback on the Schwinn 220 recumbent or 120 upright stationary bike, i.e. reliablity, good/ bad or anything else. Would be using it for cross training for my primary sport of Tennis. Any other recommendations in the $500 range? Also considering a spin bike, i.e Star...

What kind of Stationary bike do you guys use? I'm thinking I would rather buy a stationary as opposed to rollers.