Like in monogatari mentioned above. The entire show is 80% dialogue, but the series is still interesting because each character is unique in the ways the interact with the main protagonist, and there's interesting art and scene changes that give you something to look at while the talking is happening, all wrapped together with a beautiful soundtrack. These are all things that make dialogue driven shows bearable to watch, but this show seemingly has none of that.
None of the characters have memorable or interesting personality traits or diverse interactions with each-other. When Kotoko isn't being one-legged Sherlock Holmes, she's drooling over Kurou, and when Kurou isn't being a literal punching bag, he's an emo tsundere with a side of OP superhuman abilities. I don't even remember the name of the female cop off the top of my head....but she's also forgettable. Pretty much a vanilla character there to be a foil for the other two.
Kotoko also has the personality of a paper plate. She is not interesting to listen to at any point in this show. Listening to her talk about the solutions to the mysteries covered in this show is about as interesting as listening to your math professor go over the answers to last night's homework. When you have an uninteresting protagonist coupled with droning textbook reminiscent introspection , and average soundtrack, and uninteresting visuals, you get a lecture.......which is boring. It would have been better if this had ended up being a battle anime like Noragami (which is where I thought this was heading based on the 1st episode) because this is just......so boring.
Only pluses I can give the show are Nanase's titties, and the fact that the mystery writing isn't actually terrible like that of another show this season (ID: Invaded....).
If you haven't watched it, don't watch it. Between Magia Record and Hanako, there's other shows this season that cover similar plot themes (Hanako being the better of the two). I would highly recommend checking out one of those two before even considering this.
