I did allot of research before l chose this machine although there wasn't much information about this machine , l have a broken tail bone and have tried many many machines most l tried put instant pressure and pain on my back , the only 2 that didn't was the precor at $5000 to $7000 and the E-glide on sale at $1900 , l actually like the E-Glide more because the arms moved differently and l felt like l was getting a better workout and the fact the sales person told me the precor doesn't work your upper body clinched the deal , why pay all tha...