I'm someone who thinks the show has been pretty crap for a while but I felt like that was a good opening episode. It remains highly watchable from scene to scene, I suppose. That episode was enough to get me to buy in for this season, anyway.
Hard to know what the show was getting at with Jon and Sansa - was it showing that Jon is still as naive as Ned/Robb about matters of politics or was it showing that he's more able to justify his decisions to his men than they were, that he's a better leader in that regard? If this one comes back to bite him I'd be surprised - it seemed like the right thing to do and no characters were shown / foreshadowed as being particularly upset with it.
Love the hound call-back to the poor folk. The character is so interesting because he's likeable but he deserves death 10 times over for his sins. In a normal story you imagine he'd get redemption followed by a swift death but it's GoT so who knows where his story is going - it's impossible to tell how it ties in with the main plot movement at the moment.
I really liked the scene with Arya and the Lannister soldiers in the forest because it could go two ways - it could be about showing that she's still able to have human empathy (she rides off next episode with some roast rabbit and good wishes) or it could be about showing that she's just capable of being a great actress and has none at all (she butchers these blatantly decent boys). Her line about "I'm going to kill the queen", which seemed designed to bait them into attacking her makes me feel like we're getting the latter.
I know it's late in the day but I'm still holding out my hope from the very first season that Dany will be one of the ultimate villains - the fire to the night king's ice, both needing to be defeated. It would make her interesting for once and I would love to see the Starks tear her down, or maybe Jorah to get close to her again and put a blade in her back. 'Chosen one archetype princess with unlimited stock of deus ex machinas and three WMDs' is just not a character I can root for to win.
I wonder if Dragonstone is close enough to the mainland that Dany can send the dragons off on raids to spark fear in the people? Does she even have that kind of control over them? What will her first move be? I imagine she'll send a letter to King's Landing that they give her the throne or dragons are on the way.
EDIT: On the Ed Sheeran thing: It's funny because as a mid-30s guy I would have had no idea who Ed Sheeran was, only that a friend's 10 year old daughter was showing me him on her iPad at his place on Saturday. So I recognised him right away. Funny looking for a pop star, if I hadn't known I'd have assumed he was just an actor - fit the scene perfectly imo.