I have a PS4.
I likes it. The interface is much crisper and cleaner than the PS4 and just has an overall nicer feeling to it.
the games are pretty dry at the moment. Some of the free to play offerings are nice, but the best two PS4 games right now are Battlefield 4 (which is half broken) and Assassin's Creed IV, both of which can be had on current gen or PC.
I love my PS4, but I'd wait for spring when stuff like Infamous, Thief, and Metal Gear come out.
oh, and Dualshock 4 is the best fucking controller EVAR