This is seriously one of the most entertaining dramas I have ever seen (and I've seen more than I can even remember). It was seriously my perfect drama. I never got bored, every episode was really interesting and had lots of things going on so I was always super excited to watch.
I can't even put into words how much I enjoyed this drama, it was just great. I especially loved the characters, and how unique and interesting EVERY SINGLE ONE of them were, which in my opinion is very hard to find in a kdrama.
I never wanted to skip any of the side storylines however short or long they were, because I was genuinely interested in every single bit. Other dramas often have parts I don't enjoy as much as the main storyline so I often skip those parts which makes me feel bad but I just don't enjoy them, however this was probably the first one that I didn't skip a single bit of, not one second.
I actually had been wanting to watch this show a while back, but I thought it would be slightly uninteresting and I had others to watch first with 'more interesting storylines' but holy hell was I wrong. This was seriously great. I really think the amazing writing, acting, camerawork etc. all added up to just make a really great and enjoyable tv show. I loved that it made me think about the cases and evidence and what would happen next, and unlike most kdramas, I was guessing what would happen next rather than just knowing "oh he's gonna do this and that will lead to this" which is usually the case and is so repetitive in dramas. 'Pinocchio' is just freakin awesome to be honest.

lol I like how I said at the beginning that I couldn't put it into words - well there you go.