I don't know how I managed brushing my teeth before I got my Sonicare!! Its like a professional cleaning every time. I was having some issues with a regular toothbrush, brushing too hard and hurting my gums. I tried this electric one, the brand recommended by my dentist, and I've been using it ever since. The first few times its a little shocking at the vibrations going on in your head; it is an intense feeling, not a painful one, but just a loud vibration one. But after a few days of it, you LOVE the squeaky clean feeling of your teeth. Performance/Cleaning The cleaning power is remarkable. I get that after dentist cleaning feel every time I clean my teeth. I was worried about pressing down too hard, but you just let the Sonicare toothbrush do its thing. I change my heads regularly every 3 months or so, it has a little blue section that fades when its due. But what I don't like is that it seems toothpaste/backwash falls in the sides of the brush and when I change the head there's this funky guck in between the battery base and the brush head. Its gross and you have to clean it all out with a cotton swab, but that's why it only gets a 9. It also has various timer buttons. You push the button for the normal 2 minute cleaning, or there is also a gentle gum massaging mode. Its also beeps in your mouth if its low battery-but the battery life seems to last 3-4 days (long enough for a weekend trip away). Durability I love this toothbrush and will never go back to a regular manual toothbrush again. Its lasted a good year or so, just have to buy the replacement heads.