Review (3/5): It's a keeper
This little unit has the power all right-it felt like needles hitting my gums. I used the soft setting and it was painful. Also, the water tank ran out in less than 15 seconds so I had to refill three times for the first use. I will try it again and hopefully, it won't hurt. Otherwise, it may be returned to the company. Oh, and it arrived in an envelope, not a box. The inner box was a bit squished. No other apparent problems, though.
After using this little unit for a couple of weeks, I have decided I like it after all. You do have to refill it a couple of times if you are like me and take your time. It has kept its initial charge from the second day I had it for at least 2 weeks now, without recharging! Very powerful-almost too strong for me at first, but I adjusted to it.
It is made in China-which I would prefer an American made product but this is what I could afford. It seems sturdy enough and definitely powerful enough to do a good job.