I like that this is so easy to use. I had a similar device for about 15 years and it finally wore out. I like this new one because it is more compact and easy to carry around.
I gave these as presents to two people and they both said they worked great.
This is the second one I bought. First one my son loved and has been using so bought another one for my other son.
Everything they said seems to work great. I've have had a lot professional therapy and this seems to work just as good without the trip to town.
Works as well as any full sized unit!