I didn't like it that much to be honest. Probably because a friend of mine told me it was awesome and my expectations were too high.
It wasn't bad, but I'm just waiting for Dany to finally kill all these stupid Dothraki slavers. It's like - where the hell are her dragons?! >__> I want to see another one of those "Dracarys!" moments I also don't really care for some of the plot lines, e.g. what's happening at Winterfell. Just kill that jerkface off and be done with it.
I'm not a fan of Cersei either, but I DO want her to get some (bloody) revenge on those religious fanatics. Especially the septa <_< (Is that what they're called? The "Confess!" and "Shame!" b**ches. Excuse my language but I really can't stand zealots ...)
I'm pretty sure Ned's sister's in the tower. Robert Baratheon was supposed to marry her, I believe and I think we already know that she's been held hostage by the mad king during the war. We know she's dead, because the first thing Ned and Robert do, after he arrives at Winterfell (back in Season 1), is visit her grave in the crypts. So yeah - I assume it's her
End of GoT spoilers