Never cared for the console much, despite being a big Nintendo fan. It was just a thing that happened. Kind of like how some people feel apathetically about N64, I feel the same about GameCube. Both were relatively unsuccessful consoles by Nintendo standards, and each for their own reasons. But, while I'm a hardcore fanboy of N64, I could never drum up any enthusiasm for GameCube. It wasn't my console of choice back then, so many of the games were more accessible on other platforms during my collecting years, and the Nintendo franchise games always felt like they were my least favorite in most series.
I also never liked the controller. It's made for very small hands, smaller than PlayStation, tiny joysticks and d-pad. It's the kind of controller where I have to actually look at it to see which button is which because the layout isn't intuitive. Nintendo wanted to be different so they abandon the tried and true diamond pattern of "b a y x" they always used, and had become an industry standard by then. Then for good measure throw in just one extra trigger, only the right ride because that would be a wacky and uniquely Nintendo thing to do. Bleh.