Works great!
I'd never heard of this before a co-worker told me.  I've had terrible knots in my neck and back for years and this REALLY helps.  I was skeptical because of the simplicity of it but I am so glad I bought it.  It arrived in two pieces so it's something that will be easily packable for travel.  It's so simple to use and has worked wonders.  I highly recommend it!
Rating: 5 stars