I was doubtful about trying this despite its popularity but I eventually gave it a try a month ago. It was hard for me to get used to the drama at first because the first few episodes have a lot of humorous scenes which felt a bit too much for me. So, I ended up watching up to episode 2 and putting it on hold for some time until a few weeks ago when I gave it another chance. And, boy was I surprised. After around episode 3 or 4, the storyline picked up and it got so interesting to watch. I was captivated by the characters and the story and I was intrigued about how it would end. I am so glad I did not give up on this drama because it would have been regretful to not have watched this drama. I love that it is a battle of evil against evil, as a paraphrased quote from the drama, because this is a theme I love to watch in dramas. So, if you enjoy seeing bad guys take down bad guys in a satisfying way, that is one reason to give this drama a try! Other reasons to watch this drama are the amazing chemistry of the cast members, the hateful villains, the superb acting, and great bgm/OST. The acting is one the biggest reasons to try this besides the plot! SO MANY TALENTED ACTORS IN THIS DRAMA! So many of the actors in this drama can act with their eyes and they each pulled off their characters amazingly. I suggest that you should not judge this drama by other people's reviews and the synopsis, but actually give it a try first before making your decision about continuing it or not. It may take you three episodes to get into Vincenzo as I did, but it will be worth it in the end so I hope you at least watch up to episode 3 if you are not hooked from the beginning. The only thing that bothered me was that the humor sometimes felt pushed BUT even though the humor may be a bit too much sometimes, overall, the drama was such a great watch. SO PLEASE TRY THIS DRAMA!! You will not regret it once you finish. I am already missing Vincenzo now :(( I wish there are more dramas like this..

More details on why I liked this drama but may spoil.....
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1. I grew to love Vincenzo's relationship with the Geumga Plaza residents and Jang Han Seo. It was cool to see the hidden skills of the residents and their willingness and loyalty to Vincenzo despite not liking him in the beginning. I became attached to them and some moments were very touching.
2. Vincenzo is so cute with Hwang Min Seong and Jang Han Seo. The unexpected friendship between Vincenzo and Han Seo was adorable to watch and it made me really sad that Han Seo's ending was what it was because I wished to see more interactions. Hwang Min Seong is also cute with Vincenzo even though he is a terrible person, because he is willing to change for love lol. I hope to see the actors who played Min Seong and Han Seo is more projects and hopefully as the male leads because they are super talented!
3. The emotional scenes were a bit unexpected but they were carried out nicely. I did not cry but I did tear up when Cha Young's dad died. It was actually his death that pushed forward the plot and made it more interesting to watch because it pushed Vincenzo and Cha Young to team up against Babel.
4. THE ACTING WAS OVERALL JUST AMAZING! I haven't ever fully watched one of Song JoongKi's dramas but he showed me why he is a top actor in this drama. His drama was just amazing and I don't even have the words to describe how well he did as Vincenzo. His acting was top notch and I loved how he pulled off the emotions with only his eyes. The other main and supporting actors were also amazing as well. Taecyeon and Yeo Been were great for my first time watching them. It was also nice seeing some Crash Landing On YOu actors in this drama with a humorous role again.
5. The cinematography was amazing too. I love how they ended each episode with a cliffhanger with dramatic music and a zoom in on Song Joongki if he's in the scene. It just blew me away and made me want to quickly go to the next episode.