I should give this story a 2 or a 3 simply for the art, but I can't do it.
I don't usually read romance stories, but I liked the cover art and gave it a quick read through. The main lead irritated me with his amazing defect where he has absolutely no backbone, but then I grew to think it was more of the mangaka hamfisted need to find ways to make him have sex with a bunch of different women. Yet I kept scoffing at the ridiculousness of a guy that had no luck with the ladies suddenly becoming a p*ssy magnet who was marvelous in bed. It's such a cliche that I nearly stopped reading. However, it was right around the time he started bitching about whether Kana loved him or not and it became obvious that Momoyama would never ever do a thing with him, that this story was someone realistic.
That some men really do sleep around on the woman they're supposed to love for the dumbest reasons, like they can't make decisions for their self. And though I began to root against Kimijima, though the conclusion was foregone, I still wanted to see what else happened. The fact that outside of how beautiful all of the women were, and how at least 3 of them looked exactly alike hair wise, I know very well how things like this progress. It kept me interested.
And because of how decently the mangaka characterized a few of the holes for Kimijima to dip his wicket, I began to hope for one of them to punch his damn lights out for all the two timing (One does! Though it was just a slap), or that the one unstable one wouldn't kill herself.
That in and of itself is an accomplishment.
So tl;dr version: It's got merit if you give it a chance, but that doesn't mean the story is a fun one. It has some heart, good art, but it's just about a guy that can't keep it in his pants, but everything works out okay because he's a bumbling idiot.