to start with the cast i think they have done the best job because they have portrayed the best chemistry within the friends and also the lead couple.
the overall story is also very unique about how young people start and achieve their goal.
best friend of the FL the one with short hair is a bit annoying at times because she doesn't think before taking actions
i have seen this drama many times maybe because i have a fantasy of such amazing friends and love-story.
so yes definitely go for this drama you will enjoy it