Here's one example: http://bactra.org/weblog/915.html
EDIT: Also, "I know it was a challenge to review a book of its size..." comes off as insinuating that (1) the book is somehow "grand" and (2) maybe the reviewer didn't "get it".
Edit: just under 1200 pages on Amazon. I never got into it because I couldn’t figure out what the big revelation was supposed to be. It would take some serious dedication to go through such a large book for the sake of an unfavorable review.
I take wolfram’s words at face value.