I'm still not sure if a manual toothbrush or one of these electric ones is better!
The internet, theory, and everything else makes it clear to me that electric toothbrushes, both sonic and those with pivoting heads, like these latest modern Oral-B IO series, are better than manual ones... BUT.
The feeling of cleanliness with a manual toothbrush versus an electric one is significant. I don't notice that my teeth are clean with the mechanical one.
I don't notice any visual improvement. I don't notice that they're any better than before.
I'm someone who brushes my teeth 2-3 times a day and always uses mouthwash afterward.