It does the job, but as a replacement for a more expensive Sonicare model which died after several years of use, I noticed the following:
- It does rattle-- like other reviewers noted-- when you use it (though oddly, only when you actually start to brush) unlike the more expensive model which just seemed to hum. It seems that the rattling is using energy that should be directed to the brush head instead, so I suspect it isn't doing as great a job of cleaning.
- The handle is also a bit thicker, which doesn't make a huge difference in usability but I find myself inadvertently switching it off during brushing. This didn't happen with my older model and may have something to do with the way my fingers hit the thicker handle.
Overall I'm disappointed (and reminded every day how cheap I was in choosing it over the more $$ model) but will keep using it eventually until it dies.