Controller support has a quirk or two, and some things aren't very intuitive (if they were explained, I instantly forgot.) For example, to swap between characters, hold down X and left stick up and down, but you can't do that outside the menu, because X is interact. Adjusting difficulty is done with left joystick, but it's hard to get camping difficulty back down again, because to the left is a help icon which prevents moving the slider to the left. Hover over various menu options shows a help tooltip what they do, but you can't hover a controller button and access them with a wheel that only shows icons. I tried to check all the achievements, but pressing A on one of them triggers the menu point that's on the layer behind it. It all works out, and there is great on-screen help by holding select (though the descroptions for ABXY are misalinged for me), but sometimes it's just easier to grab that trackpad.

It already defaults to using the right trackpad as mouse, so it requires no tinkering, but I removed the right trackpad press as click and bound it to a back button for greater accuracy and also bound right click to another back button, because I find it harder to set a map marker with controller, as you don't see the cursor postion. Lastly, I bound another key to f5 for easier quicksave access.