I really liked the couples' chemistry and storyline. Their try of love is mature, supportive and sweet. You could tell from the beginning that they were soulmates. It's the kind of love I want in my life. The progression of friendship to romance was endearing and the way they supported each other through life's myriad obstacles instead of being a hindrance sets an ideal for us to strive towards. The side love quests are fun too. They create a parallel to the main casts of the diverse types of romance there are.
I do admit that the second half was a bit weaker. The beginning was fresh and exciting, but the pacing started to drag a bit later. I remember eagerly taking the time out of my day to watch it at the start but the last couple of episodes, it was more like: when will this end already? I feel like this should have been shorter and they should have been stricter in only choosing the best side plots to add (because there were SO many that killed the momentum). For the people complaining about the unfinished ending, just watch the special ep 31 and you'll get closure even though it's still a bit of an open ending.
A pet peeve I had....why was the lighting so BAD??? I got used to it after a while, but still; it was pretty annoying.
A bit off topic but.... Oh, and can we focus on the wardrobe for a second? Every single outfit was so gorgeous and it really complemented the characters' personalities; especially the female lead's, I would trade my wardrobe for hers in a heartbeat. Were do they find those clothes???