That would have been a good drama, all things considered, if this show has been made 10 years earlier. But it's a 2016 TV-show. And as a modern entertainment, Kaitou Tantei Yamaneko is not even close to provide anything to the viewers, in any way. Everything in this drama is exaggerated, and when it was not, incredibly boring : The comedy, playing with redundancy, repetitions and clichés, felt so old that I actually believed, at first, that I was watching an old drama (and a very old one at that).
Were action scenes any better ? Well, in truth, quite... But The MC is so annoying (an exaggerated trait presented to the viewer as a proof of the MC intelligence... !) that any action involving him is treated as a way to showoff his "wow" skills.
But the rewarding gem, the trophy, indubitably goes to the scenario. Well at least as soon as you able to find one here. This very absent scenario leaves everything, - again -, in the MC hands, which in turn leaves us very few things to better appreciate the MC smart methods and choices while it will, in the end, got you bored out of your mind, totally uninterested by the events that happened in this drama.
Now don't get me wrong : there's a goal and the means to reach it, and along the way some very nice ideas and concepts that would have been very interesting if they were pushed further. But here lies another issue : when the rhythm in this drama seems to reach a peak, the inept comedy reaches out and wrecks all in one swift punchline.
Some may say this drama is a tribute to earlier 80's TV-shows (with some winks to US, even). That's probably true, but there was a lot more to do before reaching out to the 80's : make it a 2016 TV show first before trying to reminisce anything, because as it happens, most will already forget everything about this drama.