Omg I’ve only used it once already and my teeth are so clean. I thought I was doing a good job before but my new electric toothbrush has taken away all that plaque that sits at the gum line that an ordinary toothbrush can’t remove. I found the Oral-B Genius 8000 easy to set up and use. I am connected via the app on my iPhone, and am now pretty enthusiastic about maintaining my dental health.