I have a permanent bottom retainer and I just could not get it cleaned well with a manual toothbrush. I'm not in a financial position to spend hundreds of dollars on an electric toothbrush, so I decided to give Quip a try. I AM SO GLAD I DID! It has truly changed my life. It's sleek and simple, functions exactly the way it says it will, and it makes me feel like my teeth are cleaner than when I was using a manual toothbrush.
I will never go back.
Bottom Line: Yes, I would recommend this to a friend