The story and the acting were mostly ok.
The tops, Payu and Prapai were mostly perfect.
But overall very cringy. The bottoms, Rain and Sky (who were supposed to be best friends but don't interact which each other except to talk about their boyfriends) are whiny at best and exasperating at worst. I could excuse Sky because of his trauma but Rain doesn't get any excuse: he's so annoying, and there's not one moment in the series where I liked him.
After watching BLs like Bad Buddy, I expected romance that was, well, not toxic and somewhat realistic, but Love in the air has romance straight out of a fairytale, written by a 13-year-old girl. (Not hating this genre because I do enjoy it every once in a while but I was expecting more out of this series)