There was much discussion on modern razors with three, four or five blades over older razors blade. No comment on that, just my opinion that the old razors shave as well. Given the price of the blades we can afford to change it more often and thus always have a sharp razor that does not irritate the skin. The range of Merkur razors is very large, can be irritating to the Customer Review. Basically there has long sleeves is short, comb to comb heads and headless. Once and for all: All Designs> have the same inning, all models with a comb head have the same head and so on. This means: If you buy a 23C you will have the same head as the famous 34C which is more expensive. After you buy the 15C you will handle 34C. Like that you bought two razor and you have three models! Weird but true. Anyway all the models are of the same quality. I prefer short sleeve as well as the greater part of the weight is found in the head. If this is not for already a long Stubble comb headless is better suited. Head with combs clean pans not all of a sudden that requires going several times to the same parts. The comb without head against, can clog if the pans without too long.