I consider myself a fan of guro, though I don't really get a sexual rise out of it. It's just... interesting. And frequently quite humorous.
I enjoy much of Shintaro Kago's work. I'm not as familiar with Uziga's stuff, but thought his "Mai-Chan's Daily Life" was hilarious, and sometimes even sweet and touching.
I couldn't read Schoolgirl in Concrete. It's just too bleak, and knowing it's based on a real story adds another dimension of horror to it. Maybe that's his intent in drawing it, but... somewhere, someone has undoubtedly fapped to it, and that's kind of disturbing.