Difficult and painful to use.
I really liked the idea of this product with a large tank and travel options however it was very difficult to use.  Turning it off and on was next to impossible.  Once I could get it on, I couldn’t get it off.  Even in the lowest setting the pulse was so hard that it was painful.  Once done it was difficult to replace on the body of the tank.  I returned it.  The concept is great but better engineering is needed.
Rating: 2 stars