On PS4, I had a custom joystick from BattleBeaver Customs, it had buttons on the back, under the middle fingers. It's super convenient, it's a pity that Sony does not do the same. Some pros: Comfortable to hold, including for a long time Convenient button to turn off the microphone and general sound Vibration response - fire Has some cons: It is not charged by every usb cord - on some it only needs "do not sit down"