The first thing I read when I entered to the manga site was a thread with the title "Most stupid ending ever!". As I kept looking, there were more similar titles. "It can't be THAT stupid" I thought. When I was almost ending the story and I saw it was getting nowhere, I thought it may be true... And it actually was.
It wasn't all bad though, it has its pros. I think the art was very good and suits this type of manga, some of the characters were pretty cool and I found it kinda enjoyable, since I'm a shoujo lover.
But to sum up, it's a simple story, already seen before, very short, with some comedy, wanna-be drama and a reaaaaally stupid ending. So, if you like simple shoujo, some reverse harem, you have a lil' free time and low expectations, go read it. If you don't, look for something else.
(Oh, btw, I have to admit I loved the extra story, Watashi no Sugar Baby. I wish it was something separated, it'd have a better score.)