I really like this manga and I think it's a shame that nobody has reviewed it yet. I actually think it's a tad bit underrated, because it truly is a fun and enjoyable read. I'm not saying it's a master piece, but if you like yaoi, it's probably worth your time.
Story: the plot itself is nothing novel when it comes this genre, but the dialogue is funny, it progresses rather quickly and fluidly, but still there's a somewhat laid-back atmosphere about the romance part itself, at least in the beginning. Also I actually appreciate being spared many clichés one can easily find in mangas these days (no yakuza, no kidnapping, no "my lover is so cute that 7 other guys fall instantly and madly in love with him and want to steal him away"). However, in the latter part of the story you do find a dramatic twist that actually gives everything a little more depth.
Characters: the characters are likable. You maybe could say they're a little shallow at first, especially because there's not too much soul searching before starting the romance, but near the end there is more character development.
Art: the art is simple, in terms of backgrounds and such. One point that I dislike is that this mangaka (that has created a number of good or at least decent mangas) has a tendency to always give the uke the same face - a rather plain one at that. Even so, one point I really do appreciate is how the sex scenes are drawn. In general I think that many artists tend to make them a little to messy in terms of sketching and also quite vague. This is not the case here.
Overall: I really like it and I hope you'll enjoy it as well!