I have to sit up, and stare down the center of my t.v for one, despite slouching carelessly. (And at a certain distance too, I feel as though my play is severely degraded if I'm too far back or close.) I also feel as though I'm disabled if I am playing off-axis horizontally or lying down.
It's a rare day when I listen to music and it has a sort of random effect depending on the game I'm playing. I hardly do it with Soul Calibur or any single player game. But it will generally give me a boost if I'm playing a shooter, or other online frag-fest. Probably because I feel as though I'm making a montage video. Other times music will fuck me over because I can't hear what's happening around me.
As far as play-style goes, I'm bad in the sense I'm usually on auto-pilot. I don't like giving out everything I've got. It wasn't typically a problem till I started playing this game more seriously. I'm either too distracted with friends or have the mentality of only being good when I can half-ass and beat people that it hurts me since I haven't actually practiced in Calibur to the point where that happens. Kind of sucks it feels like gaming has become way less enjoyable than it used to be for me.
Oh yeah, I play with 360 pads that are usually quickly degraded in quality. But I've always loved the xbox controller so I don't see myself switching to anything else.