In general they’re the worst looking in NEA, and yeah the teeth are a big problem. Although there are also some absolutely beautiful ones, but they’re more upper class leaning so you won’t find them on dating apps/regular clubs. So it’s a better place to go if you want to run long term game because meeting the top tier Japanese girls is a more time consuming process as you’ll need some social circle and friends, who can then set you up or just be at the right place and you can approach them irl.