I bought these for my little hands aged 4 and 7 to play retro games on the Batocera. They are surprisingly very good considering how small they are. I immediately updated the firmware and connected it to the Batocera via Bluetooth using Start + X. No crashes or connection issues. They're great for Mario Kart, but not for games like Street Fighter. Overall I am very satisfied and will buy controllers from 8BitDo again in the future.