I've only read the first book for sure, it was a long time ago and I remembered a lot of stuff that happened in the second season, so I probably read the second as well, but honestly, they're ponderous to me.
That said, I'm glad the show is not trying to be the books, and I honestly can't stand when people complain that things on the screen don't match things in the books. Sometimes truly bad choices are made, or really interesting moments are left out for no good reason (Tom Bombadil being left out of the first LotR movie is something that bugs the hell out of me, especially since it wasn't even in the extended versions, and it speaks so much to the Ring). However, time constraints are a valid reason, pacing is a valid reason, and even moreso is the reason that the story is being retold in full, which is the case I see with GoT.
Luckily, GoT pulls ratings so hard that I can just sit back and watch book readers bitch (not all of them, and I'm glad for the one's that don't) and enjoy what the writers and directors masterfully place in front of me. I definitely appreciate the book readers who know how to keep spoilers to themselves, but are willing to give insights into the books for those who only watch the show.
Okay, so in response to the most recent question, I prefer the new Daario. I don't really like the character much, which might be a holdover from how little I liked his original portrayal. What I've heard about his incarnation in the books, however, makes me pretty glad they went a very different way with him.