It's a memorable drama but it has 2 big flaws:

1 This story was totally refreshing and great, everything was perfect but by the final chapters writers decided to just ruin it and do the same overused love triangle clichés to conclude it.

2 Main male lead performance was really weak.

As most dramas I have seen, it just felt down by the end, however I find this one to be very outsanding whatsoever. All the cast performed great, The lead female did a fantastic job and all the cast was great too.  The most memorable cast I have watched, and the most memorable female lead. One of the funniest I have watched too.