Review (5/5): Great alternative for travellers
Here's the deal: If you own the rechargeable version of a Sonicare, chances are you CANNOT use that base charger in a foreign country when voltage is outside the USA's 110-120 range. Therefore, having a battery-operated Sonicare is the best alternative not only because it uses 2 AA batteries (standard or rechargeable) but because there are no additional accessories to drag along AND it's very affordable.
For those with broken or defective brushes: SAY HELLO TO THE TWO YEAR WARRANTY. A quick toll-free phone call to Phillips nets you a replacement device FREE of shipping charges. Did I mention it's a TWO YEAR warranty? Not 90 days, not 1 year, but TWO YEARS.
I buy a few of these E3000 brushes at a time to give as gifts and every receipient has been happy with it -- some have even upgraded to the higher-end rechargeable models because they are so amazed with how well these brushes clean your teeth.
The only thing you're missing is the Sonicare AirFloss -- get one of those, too!