Great Teacher Onizuka is one of the best Mangas there is. Why? Because it's very simple and it relates to other peoples lives. (Spoilers maybe included)

GTO's doesn't really have a straight story on it apart from stories of other peoples lives divided into each part in the Manga itself. There are stories of Betrayal, hurt, distrust, and many more things that have happened to peoples lives but what's so brilliant about this is how GTO changed people's views on how to live. For example: Urumi, she distrust teachers because she has been betrayed before. But then after knowing Onizuka and Onizuka teaching her one of his "lessons" he started to trust teachers again, he started going to school again. or Fuyutsuki, Fuyutsuki you could call her a teacher that "reads out of a text book" kind of teacher but is prooved not effective in controlling the Class, Onizuka just had to say about 2 sentences and she made use of that and apply it to her students. The Manga itself is fictional but you know what? The situations are real, Rape/Betrayal/Bullying all those things are true and there are people who suicide/despise things over those. That's what's so brilliant about it, you can relate to it, because you USE/ARE a student you know how it feels like, you know how it feels like to be betrayed maybe not rape but something similar.

The Art of GTO is, I must say, pretty decent, with some bits being scattered or blurry. But Overall it's decent. The characters faces are somewhat unique to the typical "manga eyes" or "manga hair" But they are mostly the same. I like their facial expressions though :D

The characters of GTO are what makes it such an epic Manga. different emotions different stories different personalities. Those are what makes GTO, but just that isn't a masterpiece, the way they go from a person who wants to die to a person who wants to live the rest of his life are what makes this a masterpiece. GTO teaches us something, how to live your life, how to face pain, how to almost do anything.. really. For example: Betrayal: Ai Tokiwa has been invited to his Boyfriends House just casually, but then was rape by 5 guys. Anyone would think that that was a sick thing to do, now she goes and beats up everyguy because she THINKS every guy is like that. But then Onizuka change her mind about guys. I'm sure those kind of things happens, GTO teaches you how to get over it, how to leave those things behind, how it's bad to judge people. GTO is about Morals and how it was portrayed in the story is the best thing about it.

I enjoy reading GTO at first I read it casually but then I started reading it more often as the story was getting interesting. GTO is not at all a serious Manga or rather it IS a serious Manga with Comedy bits on it. I won't say that GTO is just comedy with serious scenes on it because it's just not that. I mean most of the time GTO is seen goofing around the school, peeping at girls panties, all those are also, you may say, a way to make a point, live your life to the fullest! "If you always worry about the past it's your loss because you won't be able to enjoy the present." - Eikichi Onizuka. Yes! those quotes as well. I remember hearing one: Give a kid a smoke, he'll be happy for a day. TEACH a kid to smoke, he'll be happy for the rest of his shortened lifetime. - GTO. Really GTO is reality with Fiction on it.

Overall One of the,if not THE, best manga's I've ever seen