Instruct: Classify a review into positive or negative sentiment.
Query: The Waterpik to buy

This is the Waterpik to buy if your bathroom (near a sink) accommodates a plug-in one with a reasonable but not tiny footprint. The reservoir is plenty big (we never fill it or we would be there for a long, long time!) and the pump is quite powerful (we have the pressure adjustment set below halfway). The coiled tube reseats itself very nicely after use, and so far we have had no problems with it at all. It features a nice assortment of tips, though our hygienist has directed us to use pocket tips. I have recently acquired a five-tooth bridge and occasionally use the bridge tip instead. Both do a great job of cleaning food particles out of our teeth, even after careful flossing. And the "massaging" action of the jet feels good on my gums!