The storyline and the relationship between each character can easily confuse anyone, so if you're searching for some light, funny story, I don't recommend you watching it.

After watching the first 3-4 episodes (the drama consists of 32 episodes) I was reaaaally excited, I liked the whole plot, actors/actresses and dynamics between the 3 main characters. Then the storyline started to get confusing for me and I really had to focus so I would still know what was happening.
I stopped watching it for a while, but then I realized that I do want to know how it all ends. So I read a looot of reviews but most of them were negative ones. Obviously, if someone wants to watch/continue watching a drama, they rather read positive reviews, that's why I focused on only those. And I don't regret it! I continued watching it but due to personal matters I stopped again (I needed light and easy stories).
Weeks later here I am, I finished the drama and I'm writing a review. Let me tell you something: the last circa 10 episodes were so amazing that I finished it in less than a day.

What I want to demonstrate here is that watchng this drama requires attention, patience and the will that you want to see the outcome. I really liked this drama because its topic is not 'we're some rich kids", but more powerful and complex issues.

If you feel like you like drama and conspiracies then you definitely should watch it.
If you feel like you're alone and nobody understands you then you definitely should watch it.
If you think living as a rich person is childsplay then you definitely should watch it.
If you happy and you know it clap you-... Oh wait that's not it.

All in all, this drama is not for everybody.

P.s.: I started to watch this drama because of Kim Min Jae. I can firmly say it was/is worth it.