I'm not at all sure why I read this book. I mean, my relationship with John Green's books is no secret. I have not read a book of his and liked it. I just don't connect with his characters at all, in anyway. So, why then, did I pick this up? 
 Probably because it was the only book on the shelf that didn't look like A, chick-lit, and B, paranormal love story and/or science-fiction love story-esque with petty characters. In other words, it didn't have an unrealistically, conventionally beautiful girl on the cover, so I picked it up. 
 I picked it up, knowing nothing about it besides the fact that John Green was on the cover, and, despite all arrows pointing the other direction, I think I liked it. I definitely don't agree with a lot of the character's decisions. In fact, some things made me a bit uncomfortable. But Will Grayson (Green's) was a good kid. I liked him. If I saw him at a party, I might even attempt to talk to him instead of sitting in a corner. Heck, I'd invite him into my corner to drink tea and talk about life. That's how much I liked him. 
 Why did I like him so much? I have no clue whatsoever. I just know that because of him, I read this book to the end. It wasn't for Tiny (who really was the main character, in my mind) and it wasn't for the other Will Grayson (though I didn't hate him. I just wanted to give him a hug and pat his head.) 
 So, yes, this book had good characters. Also, the idea of two authors writing it was awesome! Each one of them taking a Will Grayson and writing his chapter? I love it. 
 The plot wasn't anything special, really. It was kind of silly, but for some reason, I managed to look past that. For some reason that I do not know, and I don't think anyone could tell me, I liked this book. I shouldn't have, but I did. 
 Now... There are things in this book that would make it not for some sensitive types of people. 
 The swearing reaches the point of ridiculous at times. I mean, really, are you illiterate? I should hope not, seeing as how you're writing a book. Try using different words sometime, bud. 
 Seeing as how this whole thing is about the largest gayest person that either Will Grayson knows, and that one Will Grayson (Spoiler alert) is gay, homosexuality is a large theme. For those whom are made uncomfortable by this, maybe this book isn't for you. For those of you who are okay with that, you should read it, cause it's interesting.