Was going to hold out and watch on a weekly basis, but ended up giving in and binging on all 4 eps. Good shit, and I like most of the changes they've brought on (or sped up - I get the impression they're writing off GRRM's notes instead of his books now and just skipping all the pointless sideplots and exposition, which is fine with me).
I'm a bit disappointed they seem to be easing up on Jaime's redemption arc, but since it's in favor of a "Jaime and Bronn kicking ass in Dorne" arc, I don't mind too much. I liked Jaqen popping up in Bravos instead of the random boring side characters they had in the books, lot of cool directions they could go with that that have already been discussed, only issue is that the whole "turning her away then randomly finding her in the slums and accepting her back" storyline didn't seem to serve any purpose except to establish that random dudes in Bravos are scared of his old black man face. I expected some kung-fu movie style "having to prove her worth/dedication" plotline.
Dany's stuff is still pretty boring as anything other than a change of scenery (and they'd better not have killed off Barristan in such a shitty way), but it looks like they're ramping things way the fuck up on that side of the storyline, so fingers crossed they tie her back into the main plot by the end of the season. Really hope Tyrion reaches her soon instead of dragging out his kidnapping for several episodes, that would make her side of things much cooler.
Was really surprised they killed Mance off, but I guess he's superfluous if they've actually brought one of the Stark girls back to Winterfell and are going to skip straight to Stannis kicking the Boltons out. Still, a shame, he was a cool guy - but Jon giving him a mercy kill with a bow was pretty badass.
Seeing Sansa actively move towards becoming Littlefinger's protege is cool too. My only issue is that having Brienne just run into her at an inn was shoddy writing - they could have come up with something better to bring the characters together than just rehash the Cat/Tyrion thing in the first season.
Only thing that really annoyed me other than the Barristan cliffhanger was how hard Stannis worked to make Jon break his oath to the Night's Watch. I know he offered him the same deal in the books, but it came off as really heavy handed in the show for some reason - isn't Stannis supposed to be the guy who's all about honor and pride and sticking to the letter of the law? And now he's pushing Jon to become an Oathbreaker and telling him his father's honor was stupid etc. What was that about?