Review (2/5): Good water pressure, but very hard to use!!
Good water pressure, but very hard to use (this unit and the similar clones available)!!!
The two buttons are easy to mistake while in your mouth. So while you are trying to turn it off (before removing from your mouth), you may inadvertently change the mode.
Also the sprayer head pivots, so it is very hard to keep it aimed between your teeth. You have to hold the sprayer head with one hand and the lower portion with the other - very difficult.