The odd shape of the toothbrush head which is indented around the perimeter then high in the middle, results in brush head hitting my teeth several times during brushing. W3 brush or any other never did that. Bristles became misshapen much sooner than previous brushes. Bristles don't even go all around the perimeter (4-5 spaces without bristles). Rethink the design of this one. Läs mer

All 6 of these brushes failed to be able to remain attached the the toothbrush after only 4 or 5 uses. This was every brush not just one or two. What a terrible waste of money. Do no waste your money, they are useless expensive brushes. Läs mer

I too used the DiamondClean replacement brush heads for years. And then tried this All-in-One A3 Premium brush head, and have noticed my teeth feel a lot cleaner! It feels like I just came out of the dental cleaning. A definite noticeable difference over the DiamondClean brush heads. Only 2 complaints - the BRUSH HEAD COVERS are cheap, bend the bristles when you try to put back on, and don't feel secure; I took it travelling and lost it. If you have your toothbrush in the bathroom like most people, you want you your brush to be covered. Second complaint, the ORANGE COLOR of these bristles are ugly and don't go with anything in the bathroom. Läs mer