Review (2/5): DO NOT BUY Unless you like spending $15-25 per replacement head for the rest of the time u own it
Yes it works well, but the only replacement toothbrush heads that are available to buy online (via Amazon, at least), are around $25 EACH. In general you're supposed to replace toothbrushes every couple months so that is almost extortion!!
Personally I like toothbrush heads that have a little more weight to them as well - these bristles aren't soft to begin with but they end up that way with no rigid parts to do more cleaning.
Not worth it.