The show was wonderful. The back and forth between the two parallel worlds had us on the edge. Alas, as much as I would have liked, the show was not without flaws.
SPOILER ALERT!
I just couldn't get on board with some concepts, time travelling being one of them. Time travel is really tricky for any story to work it in, and they tried to do it justice in this show as well. But there were some discripencies I just couldn't let go. For instance, how did our main leads remember everything?
And apart from the time travel problems, the ending didn't sit well with me either. I liked the fact that they get a somewhat happy ending, but what happened to the King needing a Queen and Heirs to ascend to the throne? They can't spend forever world-hopping. It's not sustainable. I was hoping King Lee Gon makes a new identity for the love of his life in his own world and they could finally settle down. Maybe they could spend the holidays in the other world instead of just meeting on the weekends.
These are just my opinions. I still loved the show and hope to see more in the future. And like always, love to LMH.