Unlike many other shows, the main character actually has to urgently get a wife which helps develop the plot unlike many other romance stories where the story gets no where. The twist is that he lost his childhood memories and he has a lost sister who is trying to marry him.
The main character seems like a really nice well rounded person as he is not too much of a pervert, loser or gets into too many accidents. However, as most characters do, he makes stupid decisons that piss people off. The people around him all seem to have their own unique personalities.
So far, it has been enjoyable without too uncomfortable or stupid moments.
Overall, i would give this show an 8 as it is nothing special but nothing bad either. If you watch it without expectations you'll probably enjoy the comedy and the progression of the plot. However, as most harems are, its not perfect but at least the story is going forward ( doesn't look like a back to where you started story). It's obvious that the main character does not do things the easy way or else there would be no plot and a simple resolution.
I would recommend people who enjoy nice romance anime to watch this. However it isn't a show for people who want a clever main character that uses strategy to solve his problems like code geass or death note
