I play on PS4 and I've turned off all aim assist after finding that the "assist" constantly dragged my aim away from the target I wanted to fire at; in some cases aim assist yanked the crosshairs, and the camera, wildly off and I'd wind up as much as 90 degrees off my target in the wrong direction. When opposing team members were tightly Grouped the aim assist hindered more often than it helped since it seldom recognized my intended target and interfered with my firing.
With it completely disabled I have more fun and I'm not distracted by the fact that the reticule sometimes fights me and actively causes me to miss.