Review (3/5): Neat concept, could be executed better
I really like the idea of a portable water pik. When I travel I have to pack up my standard water flosser and it's kinda bulky and doesn't travel well. So having a single integrated unit is appealing.
However, the implementation is a bit weak. For starters the tank is either glued or heat welded along its entire perimeter and it will, I'm sure, be a weak spot that eventually leaks. As you use it, since it's all one piece, it's really hard to hold on to and the water runs directly down from my mouth on to the unit, making it even more slippery. Maybe the pik head should be angled to allow for the water not to run down on it.
If you're someone who travels a lot and you need to have a water flosser with you I think this is worth a try. With some practice it might become less awkward to use over time.