I looked into it for my shoulder injuries, but the advice I got was that it wasn’t really all that great FOR SHOULDERS. It’s supposedly excellent for a lot of joint injuries, but because of the cup/ball/ligament design of the shoulder joint, it apparently doesn’t work quite so well. I would imagine that it would be better for hips, but I have no idea how to quantify that.
I had cortizone injections done on my metatarsals several years back, and while it helped, it never “cured” anything. It was a band-aid solution that helped speed recovery, but did not help long-term.