Flop, it ruined a game and it’s not part of the Arkhamverse.

Arkhamverse in Order

1. Batman Arkham Asylum

2. Batman Arkham City

3. Batman Arkham Origins

4. Batman Arkham Knight

It's The Batman Arkhamverse unfortunately

Technically Suicide Squad is in the Batman Arkham Multiverse

Ok

It's so far a pretty fun game from what I've played. I feel beyond a few of the side missions keeping respect to the past series though, most of it's actual main campaign is way too inconsistent and barely holding in it's continuity to the Arkhamverse. Such as Harley's characterization connecting to this incarnation of the character from the past games, a really different contrasting move of Arkham's Batman just to get him here, etc. Like, really if it just took place in it's own DC Universe to start its own, I'm pretty sure most would be fine with it.