Works great for my needs.
Not sure why others didn't like this set.  It works great!  My teeth feel great and my gums aren't bleeding when I am done cleaning between them like they do when I floss.  The power is perfect for my needs because I have sensitive gums and too much pressure makes them bleed every time.  I will definitely purchase this item in the future.  My only complaint is that the reservoir is a bit small hence 4 stars.
Rating: 4 stars