I have to admit, Nine and a half years ago when I first got the Xbox at launch, I thought to myself "How the hell am I supposed to play and be accurate with this thing?"
I could shoot straight after a few weeks and now I am more accurate at speed on my controller than using a mouse and keyboard.
I am fiercely against cheating mods in the software of a controller but I am fine with adjusting your controller to suit your hands better as you can see with my setup.