I had worried me at Amazon the Astra-blade and was quite pleased. In various forums I read of the Feather and ordered a few. Unfortunately, not here, because now I know that the price here is better than the one I had paid at another shop. Back to blade: It is sharp, what one expected from a blade. Hair have no chance, despite the sharpness no cuts (Mercury C34), with a daily shave keeps one week. The blade is a little bit more faithful than others, but keeps longer and glides smoothly over the skin.
The Astra is also good, the Feather is however better.