recommended only for singleplayer, the thing works well, it's a bit difficult to insert, but otherwise it works well, I hardly notice any lags, doesn't disconnect , and doesn't take up much space , so why the bad rating? I bought this thing thinking it would be useful to play in local multiplayer with friends in a switch, it's not, in fact it's the other way around, I have joycons from a PS4 controller and two other wired controllers if I connect a PS4 controller to an adapter disables three other controllers. When I went to the FAQ page, I noticed that if I want to connect other controllers, they have to be wireless and I need other wireless adapters, which I think is pointless,