I feel the Japanese ones with good art also have the really heavy stuff (based on CG dumps) like scat, rape, etc. So I tend to stay away since I would be navigating it blind (without translation). Even then tend to like something more romantic lol.
A lot of western games I've noticed they just can't draw dicks, or guys that well in general... some have good enough writing you can overlook it but most honestly don't. Why would I read bad porn if it doesn't even look good when I could go read a story on nifty or somewhere else...