Delivery was very quick, far faster than the advertised 12 days. I have to say that these heads are softer than the Oral-B originals, and this is not necessarily a bad thing. I think many people tend to brush harder with an electric toothbrush than with a manual, so a softer brush is definitely better for your gums. This possibly means the heads won't last as long, but at this price do you really need to care?
This is an excellent buy from a caring seller.