Things I liked:
1) The kid. The kid steals the show. He's so adorably cute.
2) Miles Wei. I think Miles Wei has become one of my favorite actors. He's very good at playing the smart yet clueless male lead. Fun and funny to watch.
3) Secondary couple. I normally feel that the secondary couple kinda drags out the drama. However, I loved the actor/actress and how they played their roles. I especially thought the actress did an exceptionally great job. I liked their story.
4) Funny moments. There were plenty!

Things I didn't like:
1) Some of the reasoning behind the female lead's actions. She plays a psychiatrist. I feel like it wasn't very realistic that she would play a psychiatrist, yet do some of the things she did.
2) Bangs/Fringe. I don't know what's with the flat across the forehead bangs/fringe. It's so common these days...makes it look like they're missing a part of their head. I can probably name 10 other dramas where the thing that annoys me the most is the female lead's hair style. I guess they're going for, "Hi, I look kinda of ditsy because that's the role I play..."?