(spelling errors ahead)
The PS4 controller is much more ergonomically designed and comfortable than the PS3 controller. The battery pack is built into the controller and charges via a USB cable that connects to your PS4. It can be played wirelessly or while connected. The battery lasts between 10-12 hours while wireless. Transitioning between the thumb controlls and the d-pads are seamless, especially with your dominant hand. The built in EXT and headphone jacks are definitely positive features. The touchpad in the middle is an interesting feature, but so far hasn't been fully integrated into most games (including PS4 exclusives). I have a few issues with the controller though. There is no option to change out the built in rechargeable battery with AA batteries or to even swap out rechargeable battery packs. This means that when your controller dies you either have to play wired, use a spare controller, or stop playing. This problem is enhanced by the wire that comes with the PS4 not being long enough for most living rooms. I have tried it out and you can use standard USB extension cords and it will work. Another issue is that the controllers do not come with their own recharging wire. If you buy 4 controllers for local multiplayer you will only have the one wire that comes with the PS4 to recharge them all with. Remember if you have friends over to play, leave your PS4 on simply to recharge your controllers all day so you can game that night.