Liked this episode, the Nymeria part gave me chills, but there were also a few things that left me scratching my head.
First, you'd think Grey Worm and Missandei would have some scars, being battle-hardened slaves. I know it's not the first time we've seen them naked but still. This is a nitpick, I'll grant you.
Secondly, I thought Sam's determination to help Jorah a little convenient, especially considering the reason he's been sent to Oldtown. He's there to find a way to kill White Walkers thereby saving the entire world, yet happily risks his life to save some dude because he's related to an old friend. It's not out of character for him to want to help others, but it does feel quite careless.
Finally that naval battle. Why is the ship with all the leaders on it sitting right at the edge of this formation where it can be easily ambushed? How did they not see the massive fleet on their way to Dragonstone? Did they not have any scouting ships just in case there was a sneak attack? Also, what the hell was being fired at them? Magic fireballs? Flaming spears?
This whole scene felt like it just happened cause the script needed it to, not because of any natural build up of characters and action. Felt cheap.