Too weak. Water reservoir too small.
Not sure why my first review was removed.  It was strange.  Still waiting to hear back from Amazon about it.<br /><br />This unit is full of compromises.  But mainly, it was too weak so it was an instant return for me.<br /><br />Pros:<br />1. It's small and portable<br /><br />Cons:<br />1. It's too weak.  Strength of the water is equivalent to about 1-2 in the standard Waterpik water flosser - it's simply too weak to really clean anything.  It's almost as if swishing water in your mouth will be more effective.<br />2. Even though description says it's 220ml, I filled the water reservoir to the max line and measured.  It's about 145ml.  The water lasts about 7 seconds in high setting, so you will be constantly refilling it.<br />3. It has only one button.  You have to press it and hold it to change modes - so if you want to change strength or whatever you have to first turn it on (water starts shooting out) while you are trying to change the mode.  There should have been a separate mode button.<br />4. Unit looks well built but the LED lights look cheap.
Rating: 1 stars