If you're looking for a crime drama which will leave you sitting on the edge of your seat, then this is not the show for you.
While there's some mystery (especially in the background story which follows the protagonist throughout the series, and will leave you wanting more), the show has a more a Pink Panther, Agatha Christie or Sherlock Holmes's novels vibe to it. If you like the genre, the story is well-written. In each episode a different case is being solved, and with each one the protagonist's character and his relationships with his coworkers develop and gradually change.

The only problem I had with the story is the protagonist's sexist-bordering-on-ridiculous approach to women. I get it's part of the character development, but still. Some of it was unnecessary and actually not an authentic representation of neither virgin Otakus nor sexist doucheb*gs.

I think the acting was superb, really. Each actor portrayed their character perfectly.

The music was mostly fine and added to the Pink Panther~ish vibe of the series, though sometimes I think it was a tad inappropriate.

Overall, I would probably watch it again when I want to watch something light & fun. Go check it out!