I read a lot of negative review about this drama, But after I watched the first 3 episodes I was addicted, and really really loved it. first of all it must be viewed in its own genre, yes, the story is repetitive, full of cliches, dragging at times, but the Cast and characters were superb and covered for the story lines shortcomings. CAST and Characters (9.5/10) - this is a thing that made this drama diffident and unique when it comes to rich boy/poor girl/ second lead triangle, there is no misunderstandings that distance the main couple from each other but real outside pressure and problems, they communicated well, talked things, explained themselves, were decisive and blunt, especially the female lead Cha Eun Sang: she didn't give Yong Do any hopes, didn't act pathetic or weak, she was strong, brave, honest and decisive even from the very start when Kim Tan started liking her in L.A, she ignored it all and did the right thing, which is considering it a dream, just a dream. Kim Tan as well, though he is "Too Perfect" but was genuine and expressed emotions in an honest lovely way. Kim Woo Bin (Yong Do) as a character and actor was the greatest, you wouldn't think he will really hurt her, but he did many times, you wouldn't think he will chase her and express his love over and over, but he did despite his pride and dangerous personality, he understood his own feelings very well, he knew what he wanted from her and couldn't settle for less, also his acting is magnificent and I was more impressed with him than I was even before he is becoming the top of my young Korean actors list for his skills as an actor regardless of the way he looks. the supporting cast were great as well, the Sunbai, Kim Tan Mom and her friend/ maid Ahjumma. the only character I hated was Lee Esther (Yoo Rachel mother). the writer did a great Job in creating a friends/ family. work place characters, each of them was unique and memorable, and made the show very enjoyable for me. Music and OST (9.5/10): apart from &"Moment" I loved the OST, great music, great songs, especially "Love is .." by Bromance. the problem with Moment was the times they used it in, but still as a song it was what the show needs: memorable and touching. Story (5/10) the story itself was average and full of cliches', but was carried well and strengthened by the characters and the tiny funny/ romantic/ angry moments between the 3 leads as well as their interaction with each other. Overall, I really loved it, after watching many intense thriller, suspense, mystery drama I needed something light that touches my heart and absorbs me, and The Heirs did it for me. Maybe, just Maybe, if I watched it in a different state of mind I wouldn't enjoy it as much, but Hey, Kim Woo Bin is a lead! so to hell with everything else.