I prefer to get most of my exercise outside. However, I live in Pennsylvania and the winter's are snowy and cold which makes that difficult sometimes. I have a go to treadmill but I have back and knee pain and wanted to try something easier on my joints with no impact. The ProForm 925 Spacesaver Eliptical Machine seemed basic, compact, and fairly priced so I decided to give it a try. I am pleased with this machine. Performance This elliptical performs well. It is quiet and functions well. It does fold up but I have a space reserved for it so I don't have to deal with folding and unfolding it. It is much more likely that I will use it when it is there and ready to go. However, if you had to or wanted to you could fold it. It has pretty basic functions and has a screen to show you calories burned, duration, etc. I like that it is easy to figure out and use. It is very nice to be able to watch TV to distract me because I stay on longer and get a better workout. It is fun and I prefer this over the treadmill I have. Comfort This is easy on my joints and has a nice range of motion.