Many players want to know how the Cross-Plattform play looks like, here I bring a video for you, it's two German players, one of them use PSVR and the other use Oculus:
Code51: Mecha Arena - PSVR Chris vs. Pat Rift Duell
And this Chris use HTC Vive played alone, you can see how the game works on Vive:
--Code 51 Mech Arena-- Mech Warrior in VR(Gameplay) (HTC Vive) (German)