Sharks, like Derbies, are one of the families of blades that are beloved by some and hated by others. As far as aggressiveness goes, this is a pretty mild blade--think lemon shark and not great white. I would not recommend this blade for someone with coarse hair and/or someone who only shaves every 3-4 days. However, if you fall into one of the below categories, you may like them, especially given the low cost: -You are a beginner and want to get your feet wet in the safety razor ocean while minimizing nicks and scrapes; while you can nick yourself with any blade, these are very forgiving compared with Feather, Kai, Personna, and any of the Gillettes other than perhaps the 7 O'Clock Yellow. -You just picked up a new razor, especially an aggressive one, and want to "tame" or dial its aggressiveness back a bit -You have fine to moderate hair, you shave every day, and you are prone to irritation from more aggressive blades I find that QC on these tends to be a bit less stringent on these than some of the more well-known blades, but given the price, this is forgivable, IMO. They are not my favorite blade, but they are worth a try.

These give me the smoothest shave of any blades I've tried, and I've tried a lot. HIGHLY recommended.