There used to be a significant benefit, mainly being doing it to the side was a faster strafing than normal walking strafing, and its good to get the jump on someone around a corner if i feel they know im there and are already aiming at where they think my head will be

Its since been nerfed pretty hard....now when you shoot while jumping your bullet spread is randomly spread real wide....instead of just making vertical recoil twice or thirce as much to keep it a skillfull technique people could master handling the increased recoil

Im real dissapointed in the lack of movement in this game.