What's your opinion of the Playstation 4 and why?
Negative. There's barely any exclusives, and you'd get a better experience on PC. Plus, you have to pay for PS+, which means you have to pay for your 'free' games.
I've never used one either, but it will do full HD and they didn't change the controller too much
*Note* not all games run at 1080p or 60fps, example, Watch_Dogs runs at 900p/30fps on the PS4.
I've never used one.