This thing is great!
My friend brought hers over to my house one night.  I actually made fun of her.  She told me she uses it for an hour at a time and it feels great.  I made fun of her some more.  I started using it while we were watching a movie.  Before I knew it, we were literally fighting over it...its an amazing invention...great substitution for an expensive massage.  Honestly, I'd prefer a massage but it feels great using it when my shoulders get tight from stress.  I now have one and bought one as a gift for another friend.
Rating: 5 stars