SOME SPOILERS!!!!
All of us are dead can have good moments but far from perfect. The series suffers from (in my opinion) cringe dialog and stupid transitions. For example, in the second episode when one of the girls gets bitten her best friend gets these flash backs of them having a good time blah blah blah. This scene just dragged and brought things to such a slow speed as it was so unnecessary, the character that died was so forgettable that I couldn't even remember her name. The scene in general was trying to make this seem sad but didn't work. It was like the creator tried to copy the ending of train to Busan in just the second episode but said, "ah screw it, this is my show!". Speaking about Train to Busan this show keeps mentioning it, so our cast of heroes basically know what a zombie is right? Well you thought wrong because half of the characters are STUPID, not thinking to attack at the head. Instead they think its a bright idea to do basically nothing the whole episode.