This product works well enough, but the battery life is terrible. The 3 AA batteries need to be changed every 2 or 3 weeks. You notice a drastic decrease in pressure when they start to lose their juice. If I had to purchase again, I would buy a different model that plugs in.
Amazing product! Waterpik is really effective in removing food particles and especially the medium sized particles that is unreachable by regular flossing and tooth brushing. Definitely recommended this product! I combine the use of waterpik with regular dental flossing, and the result is amazing!