Both have pretty similar vibe. Both dramas contain serious moments, hilarious parts and super cute main couple, which you may learn a thing or two from watching it.

Both main male characters are very wise, and they both respect the main female characters (and how rare it is). If you will watch both of those dramas you will notice they have a similar plot twist, in which I personally think QIHM succeeded more. I think anyone who loved one of those drama will enjoy the other one, though it is up to one's individuality which one he or she will like more.