Outstanding. When excessive tartar shows up on an X-Ray it's time for a WaterPik. Flushes out food that brushes can't reach. Ensures food residue between teeth don't become plaque and tartar which can cause pain and eventual gum disease. And you won't have to hear the hygienist and dentist say "looks like pretty good tartar buildup behind that molar."
This is the first water flosser that I've purchased. I've used it daily for approximately 2 months and love it. Love the number of tips. Only con is that it a bit noisy. But I'd recommend it.
It works great. Too a little to figure less messy way to use it. We added sliding feet so it can be slid closer to sink when using. Bought extra mouth pieces for husband to use. Mouth feels better and breath is better