In general I was impressed with everything that they pulled, I didn't expect a lot of that to happen (Well, Nanamo has had red flags for months), but one thing really bugged me...
Are our characters really supposed to be that weak and powerless...and well, stupid? It was obvious something was up and yet they walked right into the trap and when the shit hits the fan they're taken captive and chased off by...Brass Blades and Crystal Braves? Seriously? I know technically we haven't been defeating Primals and Garleans and such on our own, but it kinda pisses me off to see my character, a woman who has defeated Bahamut, being handcuffed and thrown to the ground like some lowly NPC without putting up any fight or trying to help the Scions. It's just frustrating.
Also, kinda sad they didn't set up the Au'Ra more. Yugiri just sort of appears, you look shocked for a moment then everyone moves on. I was kind of expecting at least a little set-up as to why Eorzea is going to be crawling with them come Heavensward suddenly, when they've been absent thus far.