Acting:
Acting in general was ok. I think the standouts for me were Ciize, View and Love. They all protrayed their roles well and with emotional depth. Ongsa's character was a disappointment. I'm not sure if it was Milk or that the script confined her to this bratty, whiny, crying, annoying girl but I could not stand her character.

Plot:
I think the plot was weak in the sense that it was unrealistic.
Firstly, everyone accepts everyone and loves everyone. We all know that's not the case irl.
Secondly, the plot point about Earth lying to Sun would have been such a huge point to expand on to show character growth and depth and lessons but nothing happened. Earth cried a bit, avoided Sun and Sun herself had to reconcile with herself and go and seek Earth out. WHAT??? That makes zero sense to me and would not happen irl.
Thirdly, no one, not even both sets of parents nor friends are shocked that girls are dating girls. They are all preachy lovey you can love anyone you want to like from the get go. I know the show wants to make these homosexuality unsurprising and untaboo, but disregarding that, even dating in high school, surely some parents would be worried. Partners sleeping over in each other's houses in high school? Parents wouldn't normally allow that, regardless of gender. It feels like everyone is just too chill and unbothered in this show.
The break up reason was lame. Until now I still don't understand why Love broke up with Ongsa - I think Ongsa is still clueless too.
I feel like the breakup scene was so forced like they tried to force a problem on them and then they quickly make up and get back together. What???
Also the chemistry between Milk and Love - you can tell they are just good friends. There's no sexual tension, no romantic feelings. They say they love each other (wayyyyy too quickly for high school students btw) but what does it actually mean?
Also, not everyone needs to be coupled up in a show you know!? It's OK for the majority of people to remain single. Why did they have to couple up the boys and the teachers too? What value does that add to the show?
Aylin and her partner (can't even remember her name) was a strange coupling up too. They fell in love - how? Why? Why are they attracted to each other? It was utterly unconvincing.
The plot frustrated the hell out of me and it felt like it let the actors down and was just lazy writing.
I'm glad that gmmtv gave GLs a chance but I feel like it let the actors and audience down when it could have done more. Just because we are starved for GLs doesn't mean we will take anything.