I really liked fact the story is set in the same universe as Heartstopper and i loved that i saw a different perspective to their life, and from a different person in the story. However, i think the book ended way too abruptly. It came to no real conclusion therefore the whole experience felt kind of pointless. The character development was also nonexistent, I didn’t see them change in any way whatsoever. The main character was quite honestly a bit annoying with the incessant outbursts in people’s faces about how selfish they are. 
The writting itself is also very YA which i shouldn’t be surprised by since that’s the genre, but i must say it’s not my favourite. As much as the rest of YA books i’ve read bothered me, this one was fairly nice to read regarding the tone and style.