Easy to use. Have different functions that you can switch by just pressing the button.Note: It pauses every 30 seconds as a reminder to move to the other sections of your teeth. It automatically turns off after 2 minutes.If you feel like brushing for more than 2 minutes, you can just press the button again.Cons: You have to turn it on once it is already inside your mouth or else you would splatter toothpaste. Switching from a function to another may be a hassle since taking it out from your mouth would be a disaster.