Haven't gotten to unwrap your PS4 yet and wondering what the experience is like? Well, pretty much the same as unwrapping your PS3. Which is, if you forgot, pretty much exactly the same as unwrapping your PS2.
Sony's philosophy since the beginning of the Playstation 2 era was "the same, but MORE". The PS4, at this point, seems to be no exception. The box to the PS4 is, at first glance, almost indistinguishable from the box of a PS3. The controller, sans small details, is identical to the PS3 controller which was, sans tiny details, the same as the PS2 controller which was a black version of the PS1 controller. The welcome screen is a slightly modified version fo the PS3's welcome screen. The sedate "Playstaiton Blue" serves as the background, which I haven't yet figured out how to change.
Even the unit itself at a distance, is almost entirely the same as the PS3.
There is zero fun about getting this new unit. I'm not saying the unit doesn't provide fun. I'm positive it will. But, as for the thrill of plugging a new device... there simply isn't one. Contrast that with the thrill of plugging in your Wii for the first time and it's a sad, missed opportunity.