This episode really blew my expectations. First of all, lighting is awful. People must stop justifying this poorly lit up crap as 'genius' or 'artistic'. lighting is pure BS.
Anyhow, battle scenes are fairly decent but lacks the momentum and realistic sense. The fact that a force that could wipe out entire horde of dothraki within few seconds struggling and falling dead around main characters is hilarious (they even can't beat Samwell Tarly!)
Death of Night's king is a joke! he is accompanied by his generals and a big horde of white walkers and arya just leaps on to him from behind just like that? Really? writers want us to buy that? Its just a disgrace to Game of Thrones and George R. R. Martin's writing.
Finally, all the main characters "magically" survives and some B list character death try to provide us the shock value- which also utterly fails.
The Long Night is an utter disappointment and a disgrace to GOT universe- that is until now, filled with surprises and bone chilling events.