The sheer amount of changes that occur on a plant-based diet are too numerous for me to be able to pinpoint any specific thing. It wouldn't surprise me if I do get more vitamin a these days, as well as quite a few other important micronutrients that I may or may not have been low on.
And that's not even getting into the vast topic of phytonutrients.
I don't, to be perfectly honest the builtin controls are the only part I don't like. Too heavy, too bulky, terrible dpad, and for me it's so uncomfortable to use the LR bumpers that I almost always remap them to the back paddles.