I recently watched "THE HEIRS", and I am glad that I've seen it. Although after reading some negative reviews about this here, I was not sure of watching this, still I thought to give it a try. And I think, I took the right decision. This drama is all that you want: Friendship, Family, and Love. In the end, this is what everyone valued. Though I am not happy for Kim Won, he deserved to be with his love. But the crown was all he wanted from the very beginning. He gets that, but with the price of his love. I am really hoping for another season for this because a happy ending is what I always wanted in every show. And I think, Kim Won also deserves that, also Young do and Tan haven't become friends like before, and the chairman neither approved Tan nor he apologied to Tan's mother. So, I think they should at least make things clear for all.
Though It was aired in 2013, still it connects you with today's world. I think it was a worth watch for me, those who have doubts please watch this.