I tried it, but when anyone joins and the match starts, the camera gets locked in the ceiling and you can't see the characters. I don't know if it's been fixed now. It's been a couple of months since I last tried it.
I tried it a long time ago, it's a decent 2d fighting minigame. If you like fighting games and have someone to play it with it may be worth grabbing... if Tropper's glitch has been fixed I've never experienced it.
I've played it precisely once, just after the whispers patch came out. We bashed some buttons and tried some basic inputs and proceeded to drop it on the spot. I think we got a rope attack from valkyr and that's it.