Review (4/5): Great but noisy
I had been using a Cybersonic toothbrush, but the battery on that stopped holding a charge (not even for a single session), so after reading that the Pulsating toothbrush was the best, I bought this.
It seems to clean much more vigorously than the sonic toothbrush I had been using. It even made my gums bleed a little initially (though perhaps the Sonic simply didn't firm up the gums enough), though that went away. When I replace the brush head, it always feels a little rough on my gums, though that goes away over time. I'm not sure whether the worn brush head or the new one is actually better for my teeth/gums.
My main complaint is that this toothbrush is MUCH noisier than the sonic brush. Before I used to brush while watching TV, but now, I have to turn the TV way up to hear what's going on.
Also the timer doesn't start timing after you turn on the brush. It starts timing since the last time it vibrated. But I don't really brush according to the timer anyway, so it's not a big deal.
Unlike my sonic toothbrush, I have had no battery issues so far (after a year of use).