DNF at 80%. Good god this book needed to be half as long as it was. And it was so unfriendly for readers. I've dabbled in MMORPGs, so I got a bunch of that stuff, but anyone who wasn't a gamer trying to read this was screwed. Same for linguistics. I'm not a linguist. I got what was going on, but the descriptions and endless intricacies of this magic system were mind numbing.

The author is a playwright. I am also a playwright and it was painfully obvious in not good ways. All exposition (and holy shit there was a lot of it) was written like the most painstaking stage directions of any Eugene O'Neill play. And the dialog was repetitive. Everything Isobel she thought first on the page and goddamn. Show don't tell. 

Structurally, the first "act" (because there are five of them) was great. But then the whole thing go bogged down in a plot swamp of characters wandering around and talking to each other without words or actions doing anything to forward the plot.

I've never DNFed a book this late in the game. But I just couldn't anymore. You can't write a novel the way you would write a play.