Well the razor blades are definitely, but they are no better than the previous generation blades or even than other brands. Now I have tried a lot of razor blades for several months and can determine the sums are all the same. (In the same price range, of course) So you have to do is decide which brand so you remain faithful. If you sometimes look at the vote on the package you thinking with a grade of 1.5 must indeed be real much better than the old Mach3 blades. But unfortunately they are not.
I think the blades are not so sharp as people write. I can recommend the blade but you should also try the other blades and then decide whether you really need this first. I still give it 5 stars because the blades are so not bad and got indeed 5 star the other. So much fun with the blades.