I bought this for my husband and me. I had no idea what to expect as it has not been recommended by my dentist. And I am AMAZED! I have since bought one for each of my adult kids. My gums feel better and I had some recession that I believe is reversing. This is definitely a good buy.
It works as it said it should. All the extra heads were a bonus. Only problem I have is that when used and if you forget to dump out water it will drain out and make a mess on counter.