I have used the Lifepro Alleva at my gym and also used my neighbors. I was very impressed with the technology and it's benefits so I ordered one for my self
I'm using this mainly to help my 16 yr old dog's arthritic hips. I'm also using it myself for my back, knee, and hand. I've only been using it for a few days so too soon to give it a review about it's efficacy. It does appear to be well made.