Some mild book 3 spoilers:
I have yet to get to the end of the Monarchies of God (since I have to order them off of Amazon because I can't find them anywhere I usually end up distracted (I just finished Iron Wars)) but I have to say, thus far, it has had some very amazing moments in it- the fall of Aekir and the refugee's exodus, Abeleyn's injury, the idea of Ramusio and Ahrimuz as one and the same, the final image of Iron Wars with Hawkwood at the helm of his ship sailing back. Images that stick in the mind far after the book is done.
I definitely enjoyed the unabashed brutality of the world- adding a lot of tension and breathless expectancy to reading it. Far too often all the good guys live, the bad guys die, and everyone Rides Off Into The Sunset. Which isn't bad, but it's definitely nice to see a grim realism that is lacking all too often.
And, on book length. Sometimes an eight-hundred-page monstrosity (and frequently they are just that, especially mass-market paper-backs with their shoddy bindings*

) is daunting, and othertimes just what is needed. I don't automatically say no way because something's short, just as I don't exactly shell out the money for a longer work.
That said, I'll ask the question alot (though not all, I'm sure) of people here are thinking but haven't asked: as a published, known author, what advice would you give to people striving to achieve that?
I better duck out of the way of rotten fruit that's probably about to be chucked in my direction. Hey! It had to be asked! :-/
Oh, and that said, it'll definitely be a loss to fantasy when you stop writing in the genre.
Thanks for your time,
.david
*- I've had to buy too many books multiple times because of the things falling apart. I've finally given up and, if I like a book enough to buy it twice, my second copy is a trade paperback. They stay in one piece better.
"Say what you will about the sweet miracle of unquestioning faith, I consider a capacity for it terrifying and absolutely vile!"- Kurt Vonnegut