I bought this toothbrush to replace my Oral B electric toothbrush I have been using for 2 years. I chose this one after researching Sonic Care toothbrushes on Amazon cause So far I must say my teeth feel super clean after each use. One of the best features is that it has different options like whitening and the sensitive option for ppl with sensitive gums. The charger is a usb cable so you can charge it anywhere. I have been using for about 3 days now and it holds a charge well. This is a added bonus especially when traveling so I don’t have to charge as often. I also like that it come with a case so you can store it and even came with a 2nd replacement head. This is a great toothbrush and I have recommended to friends of mine.