Negative Positive
Title: Unreliable
Review: The entire family of WaterPik products has a history of "motor freezing." Actually it is the pump that locks up and the motor can't turn it. This one is no exception. I was able to disassemble and grease the pump, however there is no excuse for this design. I got this one locally to replace the cheaper WP-70 bought on amazon in December. That one lasted three months. This model lasted only two. I like it when it works, but it is quite noisey.
Is the review positive or negative? 