I got this toothbrush three or so years ago and still love it. It is simple to use. Every time I brush my teeth with this brush my teeth feel from the dentist clean. The brush itself can be expensive up front and the replacement brushes can be too but it is far less expensive than unhealthy gums and teeth! Saying that, I have had the tooth brush a long time and haven't had to replace it yet and often times the store brand replacement brushes fit just as well and I often find coupons in the Sunday paper for the replacements or they are just a weekly deal at the store. Battery life is alright too. I don't know how long other charges last on other toothbrushes but I charge it once every 10 days or so. It does take about ten hours to fully charge but it does give you a couple of days warning which is good if you are on a trip or something. Overall, it just feels weird to go back to a manual toothbrush after using this one. I've used it for a long time and don't plan on buying another!