Wow! First thing I noticed is that this manga has intense cohesion problems! The dialogues didn't make any sense at parts and I had to re-read the same page a lot of times before I could go to the next one...they were really confusing and didn't seem to have a connection between them. Also, some parts of the story are even wrong because of that, though, as @pleochroic said, I don’t know if it’s because of the translation or not. For instance: at first Sudou says he's bisexual, then later on says it's his first time with a man; conflicts regarding the girls Sudou slept with are really confusing.
You know, this manga isn't particularly good, but it isn’t particularly bad either. It has everything I like in yaoi together: a promiscuous and troubled uke, a seme who can't help being attracted by the uke, really spicy dialogues (such as the "animal in heat" sentence Sudou uses to get Hirokawa's attention, super hot!) and a character who's shut down to another, which makes him fall in love with this character. So, how could I not like it?
On the other hand, it doesn’t come together as a whole. To me it should have been a one-shot and that's it. The rest was just a drag-on. First of all, it doesn't have much of a plot, really. I goes round and round on the dating versus one-night-stand thing, and though I understand the concept of it, it just doesn’t convince me enough to care. It seems to revolve around things that are already solved. Like, if Hirokawa said he was Sudou's boyfriend since about the first time they had sex, why did they keep fighting over it? I, for one, don’t think the ex girlfriend or Hirokawa were at fault. I think Sudou was just crazily insecure. She didn’t make anything remotely close to a move on her ex, so I couldn’t understand Sudou’s bitching.
Then again, I think the whole portrait of Sudou was confusing. Konno-sensei wanted to make him a nice guy who's been alone his whole life and, therefore, got a little too excited when he could. He tried dating, but since it didn't work, he was pissed and slept around a little. Seeing there was gossip going around that he was promiscuous, he concurred to that idea and said it was true, said he slept with everybody. I repeat: that’s what Konno-sensei wanted to portrait.. She didn’t.
Also, the woman involver are at fault too so I don't understand why they judge Sudou so much. If he wants to sleep around, it's his problem, isn't it?
The categories here are wrong, too. How is the seme straight? He's been attracted to the uke since he laid eyes on him. Also, he's the one who turns all crazily flamboyant at the end. To me, Sudou's much "straighter" than Hirokawa, since he's the one getting all the confused feelings and Hirokawa's just fine with it from the beginning.
Why I do like about this manga is that they date in a natural process. Not only about sex, like some out there. They meet each other's friends, go out together, talk about work and have sex. A normal relationship. The only part I thought was unnecessary was the last one, about their daily lives. Yeah, it was cute, but so what? I know it's supposed to make the reader feel like they've been together forever and that it's sweet, but I guess I just don't like the funny bits.
Also, I can't hate it because it has some catch phrases that just...caught me xD No, really, they are beautiful and make me smile.
Also, I’ve always really liked Konno-sensei's artwork, so I can't criticize that at all. I love the characters' faces and bodies, they are very sexy. I love every single drawing.