I really really loved this show, but not for the mystery part (even though the first episode was amazing, and the fourth not bad). I'm a little bit sceptical : how can there be so many locked room cases in so few time in the area of Tokyo???!!!)
Well, as i already said somewhere else before, the good point of this show is the relationship between the characters, and especially the two young leads. I'm not really fond of Toda, but I like positive characters like Aoto, even if she could become a little bit boring. Most of all, like everybody I think, i totally adore Enomoto. I really like his clumsiness in human relationship, which give us some priceless scenes(episode 3 was great). And his concerns about Aoto are really cute. I'm looking forward the next episodes, hope there will be more scenes like these. I won't say more even if I really want it, cause I don't want to spoil for those who haven't seen it yet (hope i didn't say too much already).
I don't really have any opinion about Aoto's boss, I find him a little bit useless, except for the some funny parts. Hope things will change about him.
I said I loved this show, but I'm not sure I would have said the same some mounths ago : I admit i've become addicted to Ohno-san for some weeks, and he conveys a very touching character in this show. but the plots are not so original, and might become repetitive. I hope they will find other ways of dealing with locked rooms cases when so many mystery dramas are airing at the moment (like Mikeneko holmes, really funny, and Ataru, with a more original plot).