Well it just seemed to me, especially in the two more recent books, that I was "fast-reading" a lot of sections that waxed a little too poetical for my tastes, so that I could actually get to some "story".
Just seemed a little self-indulgent at times and that a paring knife would have made them feel like less of a "slog".
One thing I will say though is that there's always a payoff in every book. So even the two most recent ones were satisfying, just felt like I was wading through more tall grass than was necessary - and I think that can only be a product of how quickly the books are written and released.
All that being said - a fantastic world and a fantastic series with lots of intertwining threads and interests, and in this he is closer to Martin in style than say, a David Farland (lol!). Martin's does have a more "realistic" sense to it given its grounding in history (War of the Roses) and Martin's magic is more "corner of your eye" whereas Erickson's is a little mroe overt.