I don't love it, but recently I've come to somewhat like it. Something that I never expected. The main thing that does it for me is the WAM aspect, having sex while covered is shit. I find that quite hot. WAM is one of my top two favorite porn fetishes, and it is quite lacking in JAV I'd say. So scat has started to fill that niche instead for me. But I don't really enjoy the act of defecating, and especially not if they start eating it.
My other top fetish is the reason why I even dipped my toes into scat in the first place, which is piss. In western porn, scat is kept quite well hidden away in some dark corners of the web, and I was able to enjoy my piss movies unharassed for many years. But once I started JAV, I kept getting bombarded with scat porn covers while searching for piss movies, since the two often go hand in hand, and eventually I got desensitized enough to give it a try.
I've downloaded many OPUD movies, among others. My favorite that I've seen is VRXS-167, which is like 50/50 piss and scat.