Review (4/5): Good, but a word of caution for people with sensitive teeth
The nice thing about this toothbrush is that it uses the same heads as most of Oral-B's other toothbrushes. This is a basic model, which probably cleans just as well as their other models. The battery lasted me about a week of twice a day brushing, and the battery indicator tells you when you'll need to recharge it a few brushing sessions in advance. Don't ignore it too long, because it takes about 18 hours to charge it fully, but charging it about an hour should be good enough for one brushing. The charger is small and doesn't take up much room in a drawer.
The small head really works well for cleaning the sides of your teeth and between them. Oral-B talks about the cupping action and it really works like the polishing tools most hygienists use. It even seemed to dig food particles stuck between my teeth(!), but you'll still want to floss where no toothbrush can reach. If you have gum issues, this may be the ideal toothbrush for you.
The dual clean head got my teeth acceptably clean faster, but it's noticeably bigger and the precision clean head worked better overall for me. It's nice that they included two different brush heads so you can see which you prefer.
Unfortunately, the slower pulsing action seems to irritate my teeth. A week or two after I started using this toothbrush, my molars started to ache. I ended up returning it and going back to my other Oral-B, whose head looks more like a normal toothbrush which vibrates up & down very quickly. It doesn't clean along the gum line quite as well, but seems to clean the grinding surfaces of molars slightly better.
Oral-B also sells softer toothbrush heads which people seem to like and may be better for my sensitive teeth.
I added another star for Amazon's good customer service and considering that most people don't seem to have sensitive teeth. In general, just about any electric toothbrush will do a much better job cleaning your teeth, removing plaque, etc., etc. - much better than a manual brush. Try one. If you don't like it, a different type may be better for you too.