I didn't like the episode for many of the reasons people have already stated with the bad writing, pacing, directing, etc., so I won't get into what everyone has already talked about. My main problem with this episode, and the season, is that I feel like the White Walkers should just be the background of the final season. The show is sacrificing great character moments and writing, which is what made the show so good, for just sprinting towards some sort of standard battle of humans versus a group of things we feel nothing for. They were never really what the show was about. I'm fully on team Cersei and want her to take advantage of the situation and end up on top at the end. She can let Jon and Dany bang one out first though.