Only thing I would criticize is that interaction with other people in MMOs is always exaggerated in anime. Same with “in-game” scenes vs how the game actually looks.
The whole NEET scenario is actually pretty believable (socialize as little as possible, only go out if you need food, etc.). What needs to be seen is how that aspect will be handled (expensive gaming PC + current expenses + no job/no income = ?). But that hardly gets any attention in other anime dealing with that scenario either.