I read a few reviews, and a friend even told me not to watch this, but I love Singto so I tried it anyway. Overall, I enjoyed it. I've enjoyed shows with less depth than this one, and the actors really drew me in. Obviously Singto is great, but Yacht is also precious, and Tae is pretty good too (It's my first time seeing him). There is a scene where Maze gives over control to Phap for one surprisingly sensual moment and when I tell you my heart went doki doki and I had to pause to breathe after....

tl;dr at the bottom.

One of the main things I've seen people say is that Maze (Singto) isn't likeable, that he doesn't grow, and that he's an asshole. They also say they know nothing about him and he's one-dimensional. Let me add my 2 cents.

Maze is a no-nonsense businessman. He puts his company first and tries to do what is best for his business and friends. Besides that, however, Maze is easily flustered (although he tries to hide it) and gets nervous about physical touch. He's a workaholic who needs to be coerced into having fun sometimes and also he needs hugs. He's afraid of failure and being told he's not good enough. He's afraid of opening his heart because he thinks people will leave him eventually after he lost 3 parents and thought he lost his brother. And yes, he's a petty, jealous little sass master sometimes, and I love him. Some say he was mean until the end, but Maze was just too proud and too scared to admit that he liked Phap out loud. Singto gave him a lot of nuance and heart. Also the costume department needs a raise for all of his accessories and fancy clothes. At least once an episode, I sent my sister a message saying "God Bless the costume department."

Phap is awkward and makes me annoyed when he fails to be professional and follow directions. But he loves Maze a lot. I felt a lot less nuance from his character, but he was a good guy and he did do his best as an employee for Maze.

Where the show fell flat for me was the side couple. Yacht brings a lot of emotion to his role and cannot be faulted, but I cannot say the same for Yoon. Yoon was stereotypical and I felt no chemistry from him for anyone. Yacht was in love with no reciprocation, except apparently there was? Yeah, I didn't buy it. Also, Tharn's manager, Pookie, is a bitch and a scandal waiting to happen. While I didn't approve of them saying Pookie deserved to be beaten up, I doubt anyone would have jumped in to stop it in real life either. And then Pookie tried to throw Tharn under the bus for it as though he struck her, even though he helped her up and stayed with her after the fight.

A minor issue for me was the continuing misunderstanding that Maze was in love with Nueng. Sure, I also though he was at first, but as soon as we found out the real reason for the awkwardness, it would have been nice if everyone else in the show could have stopped acting like Maze wanted to sleep with his step-brother.

Another reviewer said Maze made up the video that took down Pookie, but that wasn't what I heard. Maze "wrote the script", but the story was real as far as I understood. They had to bribe the other actor to come out and admit he was nearly assaulted, but as far as I can tell, the whole story was true. We know Pookie is a liar and a drama magnet, so I'm not sure why other viewers are assuming Maze made that up. "Writing the script" is what Maze does. He knows how to present facts and persuade people.

tl;dr?
Basically, I think the show is getting a lot of hate for small things or misunderstandings. Sure I don't know the backstory of every character and all of their idiosyncrasies, but I don't get that from most shows. I enjoyed this show for what it was (and for Singto. Definitely for Singto. Singto is flawless).