Review (3/5): Go with a better brand.
Battery doesn't last as long as my old WaterPic brand. The cord that sucks up the water from the tank can make you have too lean the flosser once water is almost empty. The WaterPic brand has a hole in the bottom that drains the water from the reservoir to bring it back to the tip. However, I do like that you can detach the reservoir and let it dry out to keep from mold growing.