I've lived in Korea and not Japan, so I can't directly compare, but they're pretty great.  Only problem is, their feelings about ugliness in general and their highly assimilationist culture means they tend to dress the same, do their makeup the same, etc... all of which I wouldn't mind if they didn't all get plastic surgery.  It's fucking creepy, and they all get the same exact nose, same exact chin, and same modifications to the eyes.  It makes me sad... Not to mention confused as to which friend is which as they now have the same face. Japan seems to value natural beauty while encouraging people to (or shaming people into, but what's the difference, really) be naturally beautiful by taking care of themselves, which is perfect in my mind.