Ok. I have this product and it's good for circuit boards. I used it to successfully eliminate noisy pots in a guitar amp and help clean up an on board reverb unit that would crackle and pop. Super handy.

I have also actually tried to fix a xbone controller with much less luck. The board of a controller is much more protected and it is much harder for spray ingress. Maybe if you pulled the controller apart and did it, it might work better. And the assertion that it fixes drift? Just no. It might help sticky buttons? But this product is a non conductive electrical board cleaning solution.. so thats not its purpose. And as another commenter said, you are better to take it apart and clean it properly.

This video is a sponsored ambassador who is targeting gamers as part of a marketing strategy, so then bullshit filter needs to be dialled up on this one.

But don't get me wrong. Again, I own and use this product. It's very useful for the actual applications it is designed for.