What could have been done better:
1. Plot - In general, it's quite predictable. It's your typical love story that started out with a strong dislike. Sometimes, the twists came too suddenly and problems were resolved too fast.
2. Character development - Even at the end of the series, the background of your main cast was not well established. There were mentions here and there and it was enough to explain their actions, but fleshing out their background would make viewers love and appreciate the characters more. But given that it's only 40 episodes, I think it's forgivable.

Why I loved it:
1. Creativity (? for lack of a better term) - Some have already mentioned being displeased with the whole "breaking the fourth wall" concept but I find it new and interesting. It might be a first for Philippine TV - correct me if I'm wrong. There are also post credits scenes - something I've seen for the first time on a TV show. I wish they tied it up to the main story line better, but it's appreciated as it is.
2. Cast - The chemistry, especially between the 2 leads, is undeniable. I'm not a good judge if an actor is good or not, but the chemistry between each other is definitely there.

Most of all, I loved it because it's such a feel good show. I'm tired of the usual heavy drama on TV. It's not your typical Filipino drama where there's a villain so irrationally evil that even killing them is not justice. This feel good romcom is definitely a breath of fresh air. I was laughing a lot. The jokes were smooth. The story was easy to follow. The characters were easy to love.