I enjoyed it, and I will probably reread it, but I was disappointed that it turned out to be so Sid-centric. The Geno whump is so front-and-center at first, but most of his issues outside the pining get resolved pretty early on. He doesn't even get the brunt of most of the homophobia. His main character conflict for the second half is "How can I take care of Sid?"

Also, Sid's martyr complex and his dad's shitty parenting felt kind of... tacked onto the premise? You can get plenty of conflict in a fic about emergency soulbonding without taking things to that kind of woobie extreme. I'd be really interested to read a fic that was more about "how do two moderately emotionally healthy adults deal with this" than about one moderately emotionally healthy adult and one pathologically selfless adult.

Obviously those are personal preferences, though. I did like how the author handled the worldbuilding - the different powers that might come with a soulbond, and people having more than one, and the consent issues, and how someone might not bond until pretty late in life.