Bought these after my original joycons got too drifty. They work like a charm, mating instantly and even rumble. However, they are not without their quirks. The fact that they don't fit the official Joycon controller accessories as they're a bit thicker than Nintendo's is a little disappointing; but not that bad. They also stop rattling after a while in handheld mode, but rumble 100% correctly in docked mode. One final note: the ABXY buttons, navigation bar, and R1R2/L1L2 buttons are really unsatisfactory when pressed.