I bought this because my PS4 controller's left analog drift and my right one (which is often used for camera movement in games) won't stay in place . They're all internal because the analogs don't lock up or get stuck like the PS2 controllers. But right after taking it out of the box, turning it on and checking it has the SAME PROBLEM; The left stick is drifting and the right stick is not staying in place. I don't really know if this is some weird Sony system bug that started in June or so, or if this controller was just a bad buy.