Given how you played all the arkham games 7 times... then maybe?
It's not a "good" game, but if you're that much of a fan, maybe there are some things that will kind of save it for you.
The story is decent, it's not the worst part of the game, but the gameplay is really lacking.
The combats don't have the react / parry system that Arkham games had, instead you only have a dodge. This makes the combat have much less flow than the arkham games, and they feel incredibly boring and repetitive. Stealth is almost impossible, you really don't have as many stealth opportunities as in the arkham games, barely any abilities related to that, only Robin can do a tiny bit of stealth but it's pretty lame honestly.
Add to that the fact that there is a looting system, a leveling system, and you end up with something that feels like a very repetitive MMO, but with an okay story.
The worst part about the leveling system is that it's totally useless, every new night in the city also increase the level of the ennemies, so you never feel more powerful at all, it's just a neverending loop, without any of the satifaction of getting stronger, but all the hassles of having to manage loot, crafting, inventory, levels etc...
Unlike a lot of people, I was actually REALLY interested in this project when it was announced, I've been wanting a game based on the rest of the bat family since I played the DLCs in Arkham Knight, but the end result is very disappointing.
I recently played Marvel's Avengers and even if this sounds weird, I thought it was a much better game than Gotham Knights lol At least the combats here were pretty good, and even the campaign was honestly totally decent, it's just the endgame content that sucks, but if you just stick to the main story, it's a better game than Gotham Knights to me.
One thing I liked in Gotham Knights though is that even if the city is a bit disappointing because it feels too generic, I liked that it allowed us to play in a version of gotham with civilians instead of just villains, it was cool to see pedestrians and cars etc in gotham for once, I liked that.
Edit: Oh another huge problem of the game for me was that even if there are 4 characters and you would like to switch between them, you can't really do that because you will need to grind from scratch for all of them, unlock their traversal abilities, redo repetitive progression challenges etc... This was really a big problem to me and a friend (we played it in coop). At some point you really don't want to try other characters because it's too much investement to make one playable.
