Been looking forward to this for months. Didn't disappoint, though I kind of expected them to come out with all guns blazing.
Outrageous pace in the first few minutes with the Freys, Cersei, Jaime and Euron -- it kind of petered out after that. Didn't think they had time for that kind of set up what with 13 episodes left and all, and a feckton of characters and plotlines to drive towards a conclusion.
Maybe I'm overthinking it, but another thing that struck me is that Benioff and Weiss struggle a bit without any proper source material to draw from -- though I'm sure they've been thrown a morsel here and there. Binging a couple of early seasons before starting S7 has really made that evident. Dialogue sounds very, very different from previous seasons. All the little clever jibs and jabs are gone (though they managed to squeeze in a 'cnut' here and there), and on the whole it's much more straight forward and direct than the "GRRMartinisms" from the books. Even the language itself seems to have changed a bit.
Still liked it though. Sansa is really showing some teeth. The women are generally in a strong position this season. Cersei, Arya, Yara, Daenerys, Sansa all have direct or indirect control over either armies or magic shapeshifting nonsense. But my guess is that most of them will start to get peeled off as we get closer to the climax.