Much better! I have no pain in hips, knees or back now, nor tendonitis in my achilles tendon. Recently I have caught myself actually running upstairs (previously unknown and undreamt of!)
I'm 50 so I know I'm not going to run like a 20 year old, but nevertheless the difference is dramatic. I started to notice it around the -30lb mark, and it's got better and better since then. So you peeps will soon see the benefit!