Part-way through, here's an update & some of my thoughts (may have spoilers):
-The story is quirky, but in a good way. It gives you a lot to think about and follow, so it's a book that readers have to engage / struggle with at times. The pay off (like touring through Rifter's Lane or the battle on the Great Grey Bridge) is pretty good.
-The choice of narrator as the worm is actually really interesting, and I don't know if I've seen that kind of thing in a book before.
-It took me a little while to realize it, but Chapters 0.9, 0.8, 0.7 etc... are all narrated by someone else. Who? I guess I'll find out when I reach the last of that chapter set. The PDF has a side panel to help readers navigate that, but I don't think / know if the EPUB version has it. That could make keeping track of narration tough for those readers.
-I looked ahead at the Mystery of the Chapters puzzle, and I can't make heads or tails of it so far. Maybe I'll try my hand at the essay-writing competition :)
(review of free book)