I was skeptical buying these brushes, but they are the real thing. They are effective in preventing plaque build-up, plus they keep my teeth white and shiny. Highly recommended.
Works well and I like better than the C1.
Everything works great. The feel was amazing and with enough pressure for my teeth to feel clean as I thought it wouldn't have enough pressure as manual brushing. Love it.
Fits perfectly and it was cheaper than target
Both a pro and a con for these are that they are proprietary to Philips Sonicare 6100 series toothbrush motors. I cannot brag enough about how well I like this setup. I wish I had purchased these years ago.