I wish I had spent more time on this machine before I bought it. It felt OK in the store when I tried it for a couple of minutes, but after about 10 minutes into a workout I can't get over how much my quadriceps burn in the front of my legs. It seems like the pressure is always on the balls of my feet (because the machine makes my posture lean forward a bit) and hence the load on the quads is never relieved. This makes for a really uncomfortable workout because those quads are really built for power and not endurance. For endurance you really want to involve the glutes and hamstrings more. I think this is really the biggest difference between the front flywheel machines and the rear flywheel machines. I'm hoping I can return this machine.
