Dh and I have used sonicare for a few years now and have had a few different models. According to our dentist and hygenist, it has improved the health of our gums big time. Our current model, Sonicare flexcare w/ sanitizer, is amazing. It has 3 settings; clean, sensitive & massage. You can also chose a 1 minute fast brush or a 3 minute thorough brushing. The best part of it though is the sanitizer and the new design of the brush. The problem with our old sonicares was that after awhile, mold would build up under the replaceable brush and would be very difficult to clean. We totally love the new design of the replaceable brush, flat bottom, and the addition of the uv sanitizer. I can't say enough great things about it.