Caveat: Worm is really dark. The characters are clever, the protagonist makes the most out of a superpower that seems mediocre at first glance, and there are enough twists and turns that I would look at the clock and realize that I'd been reading for six hours. (Worm is really long, so if you're the sort of person who has to keep reading fiction be warned that it will eat a week or two.)

But, despite those positives, terrible things happen to everyone always. I found it similar to Game of Thrones in that it was engaging but depressing, and unlike GoT where new characters are introduced, dance about, and then die, in Worm there's a clear protagonist who, as far as I can tell, always wins eventually. I also found the superhero fight sequences less engaging as time went on- but they can be skimmed with little loss.