I've heard good things about it (along with that it won't be an easy read as you say) however I don't want to torture myself reading boring stuff for like 1000 pages until something interesting happens.
There are much better books to read and too little time.
Actually, that's more or less a rule I try to follow: If the book can't hook me after some pages and I keep feeling bored and not interesting I just put it away. Other books that I have started but found way too boring to keep reading them:
(* please don't downvote me for this. I know that some of these books are considered classics and many of you won't like this but remember that this is just my personal opinion; I tend to get border easily *)
- The orphan master's son - The man in the high castle - Metro 2033 - Neuromancer - Catch 22 - Digital Fortress (this wasn't so boring but I hated the smart-ass characters)
I haven't read any of the off-shoot books yet, but they're on my list.
I've only read 2 books and a half so far and it is brilliant!
I'm not a big fan of fantasy books (prefer hard sci-fi), but Malazan just blew my mind. One of the best things I've ever read.
Not an easy read though, be prepared!