Perfect fit in my hand. Easily manipulated to cover all teeth. Reservoir holds enough water for half teeth -upper or lower. More would be too heavy and awkward to handle
The Waterpik does exactly what I expected it to do but it seems to go thru batteries extremely quick. I have now put the third set of batteries in it within the last six weeks.
I like my waterpik and think it's effective: I have great oral care partly thanks to this device. My initial waterpik died before the 12 months were up and Waterpik, no questions asked, immediately replaced it. Now that's the sign of a really good company. I will recommend Waterpik brand do anyone thanks to my good results and their excellent customer service.