Hi everyone,
This is my first kdrama review on this site, so please be nice!
Vincenzo is the kind of drama that I find to be a pattern with TvN shows -- it promises a lot but it doesn't deliver what it says it will. The writer does a great job of building the hype, but kills it on their own with a few mistakes. I'd like to emphasize that these weren't a dealbreaker for me necessarily since I finished the entire series, but they did definitely make the show a drag.

Downsides to this Drama: (Only 3 y'all, don't wanna bore you! ?)
[1] The rich man with an infinite amount of money
A classic K-drama stereotype. The heroine in need of money and the hot, rich guy who has a bottomless bank account and they're madly in love. This is one of those tropes that is funny at first because of how ridiculous it is, but in Vincenzo, it's pretty much the driving force behind the plot. In almost every episode, Vincenzo is showing off his wealth and yes the actor does make it look cool at first, it gets boring to watch towards the end. Love the actor, not a fan of this character.

[2] Villians that never change their evil-doing patterns
This is a less commonly seen trope in kdramas, which I normally find exciting and fun. The bad guy tries something, he fails in front of the hero, so he comes up with something even more sinister that keeps you on the edge of your seat. In Vincenzo, there's an attempt to do that but it often falls short. Vincenzo gives the villian a run for his money, something pretty cool to watch, but not as fun when a single character is basically driving the plot alone.

[3] Romance is subtext
Now, I know I'll get some bad rep for this one. Yes, I know the main point of this show isn't romance, but I mean, the writer was being rather stingy with his romantic moments here. I mean, even a little bit more would've been good by me. It's really cute in some parts, but so many things get left unsaid that you just keep wishing they'd added a little more to the dialouge in the emotional scenes. Not the worst, but I'll live.

Upsides to this Drama:
[1] Side characters that live in your head rent free.
This show is one of those where you get attached to the side characters without meaning to. You laugh more when they're on screen, and you really want to see them get their happy ending. The writer does a great job at creating this fuzzy feeling of family among people who really couldn't be more different. Awesome.

[2] No goody-two-shoes good guys here.
Vincenzo isn't afraid to break some rules, and neither is Chae-young. They're tough, they play dirty when they know they're going to lose, but they do it with elegance. Not to mention, a badass power couple fighting crime together? Sign me up!

[3] Revenge is a dish best served cold.
Every villian in this show gets what they deserve twofold, part of a somewhat gruesome but also weirdly satisfying ending. It's a bit much, but at the same time fits the vibe of the show. It'll surprise you for sure, I know it surprised me.

Overall:
Vincenzo is definitely a show with its flaws, but I wouldn't say it's an awful one so it's a 7/10 from me. The music gets a 7, the acting gets an 8 (because of the good chemistry). If you're okay with some very in-your-face and over the top cliches, like rich-man-with-infinite-amount-of-money, go right ahead. Just let yourself laugh it off, even when the show's being a bit much. It's not the most serious show, but it will make a statement. That being said, I'm more of a romance woman myself, so rewatch value is gotta be a 6/10 for me.

Hope this helps someone! Have a great day y'all.