The biggest Sin of PSO2 Episode 1~3 was the god awful presentation of the story as well as the multiple timeline Idea being confusing.
This being an anime already takes care of one problem, if they make the story flow better as well then this might be really great.
I do hope this wont be a 12 episode endeavor. You can't summarize 3 Game Episodes worth of Story into 12 Anime Episodes without skipping and cutting huge amount of information.