An amazing drama that is definitely worth giving a try!

STORY:
From start to finish, the drama managed to capture and keep my attention throughout the hours worth of episodes, and kept me on the edge of my seat with each scene.
The cliffhangers were just perfect, and had me counting down the days and hours until the next episode would be released.
The mixture of action, crime, drama, comedy and law was amazing, and I've never seen a plot be so well paced as Vincenzo.
The story was well thought out and well written, nearly every character shown ended up having a role to play and they weren't forgotten so easily.
Vincenzo was a rollercoaster ride that managed to have me going from laughing, to cheering, to crying and back to laughing all in a matter of minutes.
I liked how the corruption is kept on a realistic scale in this drama.
Best running joke will be both the Corn Salad joke and the countless mispronunciation of Vincenzo's name.
I will say, which is currently a popular opinion, that the drama could have been better off with maybe 16 or 18 episodes instead of 20. There was a lot of filler in the later episodes, which messed up the pacing a lot.

CHARACTERS & ACTING:
The monks, Mr. Cho, the Pawnshop couple, Mr. Tak, the crazy mother with her son, Chef Toto, the zombie dancer and even the gangsters had so much more backstory then I initially thought. Geumga plaza gang / Vincenzo family was truly the best.
Song Joong-ki and Jeon Yeo-bin's chemistry was just fantastic, and while I disliked Cha-young's character at first, her development was just amazing and I was absolutely in love with her character.
The villains were just fantastic, and I've genuinely never hated villains more than in this drama. Absolute kudos to the writers, and the extremely talented cast who portrayed these characters so well.
Ok Taec-yeon's duality absolutely baffled me, and although sadly I already got spoiled before watching the show, I still found myself in awe at his amazing acting.
I loved that Vincenzo remained set on his mafia-self until the end, that Cha-young never tried to make him change his ways and accepted him for who he was. A lot of dramas tend to change the character for the sake of love, but thank goodness that this drama decided to do it right for a change.
I will say that they missed out on fleshing out Vincenzo's character a little more, we get flashbacks, but never really understand the meaning of them.
The character development of Jang Han-seo was just tear jerking, and he deserved so much better. I really hope Kwak Dong-yeon finally gets a leading role after this. He did such an amazing job at playing Han-seo.
Loved Mr. Nam with his little lighter when imitating Vincenzo, and his polite hands.

MUSIC:
The music was well used and memorable, Adrenaline by Solar is chef's kiss.
In other situations, the lack of music made the emotions of the scenes just that much more impactful.
The music always matches well with the ongoing scene.

REWATCH:
I would rewatch this show purely for the comedy, it was truly one of the best I've ever seen.
Though rewatching it would lose a bit of the impact it had on the first watch.
(I don't think my heart can handle rewatching the finale.)

OVERALL:
I truly did love this show, and it will definitely be an all-time favourite of mine.
It was well structured and written, and it's very clear that a lot of thought and time went into this story.
Exceptional work from the entire cast, and it's definitely a cast to be remembered for a long time.
Though my critique is that the finale was messily written, which all comes back to the fact that this drama would have been better off with a few episodes less.