Best and Best-Buy Electric available today
In spite of the fine reviews, when I ordered it I was skeptical. I'm a believer now. I also am always skittish when I hear of a product that tells you "time to buy more".. :)<br /><br />Also the purchase of replacement heads CAN be reasonably priced IF you buy it from amazon rather than a vendor that needs added shipping AND you plan ahead to  fit it into another purchase so you get free shipping (or even possible discounts). They are currently priced about $15 for 3 and that seems reasonable. (or you may find them at a "store near you" at retail price which I would expect to be similar).<br /><br />PRO:<br />*The DUAL CLEAN provides excellent cleaning.<br />*For those with small mouths or special needs there are other heads available for whitening, flossing, soft bristle, and single rotating<br />*The battery SEEMS to be pretty long-lasting (based on others, I've not had it long enough to judge)<br />*reasonably priced and available head replacements<br />*the built-in 2 minute timer is also a nice feature<br />*the charger is small and functional (too tall for most medicine cabinets..). The cord is plenty long.<br />*Its easily rinsed<br /><br />CON:<br />*The rechargeble battery SHOULD be specially disposed of (think green)<br />*The dual head is fairly large.. its fine for me, but for children or small mouths I expect it would be uncomfortable (use a different head style)<br />*The "buy now" color-change bristle seems to vary only with time, not use or bristle flexibility.. It is pretty much just a marketing gimmick.. buy a new one when you think you need it instead.<br /><br />I've examined a number of electric brushes (and have owned a number over the last 30 years) and I believe this to truly be the best on the market to date.<br /><br />edit 7/'11: The price on this has gone up almost $12! This is a 66% increase in a year.. There has been no retooling cost .. they are just milking a cash cow now.. I still like the unit, but the price is getting out of hand... no longer a "best buy" from me... it still is a very simple device. The replacement heads are now about $6 each.. up about 20%.
Rating: 4 stars