The title says it all - I love everything about this series: acting, music, cinematography, chemistry, feelings (oh, so many feelings! My poor heart). I cried during every single episode.
It's not your classic BL - there's no BL cliches in the series (I mean cliché stuff like "oh no, we fell onto each other and accidentally kissed" etc). It all feels very natural. There are no awkward situations that feel forced.
The actors even have ugly crying scenes, which is nice because people just don't look beautiful when crying.
You're definitely missing out if you don't watch this series.