A lot of the writing is disjointed. You get writing that makes little sense in the way it's phrased. Also, Martin is using a lot of big words to show off his vocabulary when shorter simpler words would do. There are sentences that read odd and drop you out of the story to go WTF. Also, some of the characters seem to be going backwards in character development. Things we should have gotten past are still issue(s) for them.
I've not yet finished and am a little over half done. But I'm not expecting the writing to get much better if it does get any better.