What do you mean? Do I own it? Yes (https://www.amazon.com/GameCube-Controller-Super-Ultimate-nintendo-switch/dp/B07DJX3Y47/ref=mp_s_a_1_14?dchild=1&keywords=gamecube+controller&qid=1618587017&sprefix=gamecu&sr=8-14) I’ve had this one for about 3+ years now if I had to guess and It’s been great. The inputs are smooth, fast, and consistent. It’s feels solid. I still works well. They’re easy to mod, if you want, for quicker inputs and different button feels. I can 100% recommend getting one of these over an offbrand one. I’ve owned multiple offbrand ones and all of them have broken and/or been horribly made and poor quality. He only use I have for them now is for parts.
Get one of the official Nintendo ones releasing because of Smash Ultimate.
Stay away from 3rd party ones. They almost always drop a significant amount of inputs and are grossly inferior to official Nintendo controllers in terms of build quality.
I would even advise you to stay away from older 1st party controllers. They can have worn out sticks and button that don't feel right, and a lot of the time they're dirty and really obviously show their age. Those won't be so much of a problem provided you're okay with opening up the controller and cleaning everything yourself and ordering new parts to install (which will require soldering if your analog stick mechanisms are broken), but at that point you'd save time and money just ordering one of the new smash ones.
Even wavebirds ain't ideal for every situation. They have the same problems with wear as I discussed above, and they're also prone to failing completely with age. I knew a lot of people who's wavebirds simply stopped working altogether around when Smash 4 came out.
Just buy one of the new ones and save yourself the headache.
Get him this one instead, it would take a while to explain all the reasons but just trust us, this one's better. He'll actually use and appreciate this one:
This is all I meant.
Just search Amazon for the Nintendo super smash Bros GameCube controller.
https://www.amazon.com/GameCube-Controller-Super-Ultimate-nintendo-switch/dp/B07DJX3Y47