Worked well for the first couple months.
I bought this for back pain relief, and it worked well for that.  One of the attachments snapped in half the second time I used it.  I contacted the manufacturer and then sent a new set which arrived a few weeks later.  Then the battery started draining faster and faster.  After four months this thing only lasts about 2 minutes per charge.  I'd say pass if you're considering this one.
Rating: 2 stars