Review (5/5): Greatest invention yet
Wow, this is one impressive toothbrush! I ended up buying two (one for wife and me). I never thought something this inexpensive would be this good. It cleans super well and I can't believe how well it is built and how good the quality is. Also it doesn't damage teeth, which is great (enamel wears away easily with manual strokes that go back and forth). With a little pressure (about 30-40 grams), this thing blasts plaque and bacteria away. As for those brands out there? Don't buy them--this is way better than that.
A note on the battery for those who don't know about lithium ion batteries in general (this goes for phones, too): you do NOT NEED to charge it for 15 hours before using it, nor do you need to discharge it to death before recharging. This is a common mistake because most don't know that the anode in lithium ion batteries ends up having a reduced capacity after many charges. Still, this isn't an issue for a brush like this (after 500 cycles your 240 minutes will be reduced to 70% capacity) as it will take a very long time to see any decrease.