The four USB ports snapped my controllers in without any wobble, and it recognized them instantly on both my Switch and PC. I've been playing Smash for hours and haven't noticed a single dropped input, which is exactly what I needed.
Violet J.★★★★★
Finally, my old WaveBird feels relevant again on the Switch — plugged this into the dock and all four ports lit up instantly, no messing with settings. Works just as smooth on PC for Dolphin, which is a nice bonus. If you’ve got a drawer full of GameCube controllers, this is the adapter you’ve been
Riley★★★★★
Plugged it into my Switch dock before a big Smash session and all four ports responded instantly, no fiddling with drivers or settings. The adapter is solid enough that I don't worry about yanking the cord during intense matches.