Received the Xperia Z today.
Well, this thing is “big”. It’s not much bigger than my Nexus 4, but it’s looking damn gigantic.But don’t panic, it’s fitting well into trouser pockets.

The package has everything included you would expect from such a phone.
Charger, USB-Cable, earphones, manuals and the sony typical screen protectors.
One pair is already on the device (front + back) and another pair is in the box.
And surprise, surprise, there’s a charging-dock included.
My first impression is very good.
Feels very solid and looks great, sound is good, the screen looks natural and is very sharp.
The 13mp camera seems to do a good job and the software is sony typical clean and well organized. It seems that you can add a wrist-band at the right-bottom edge to prevent the phone from dropping out of your hands. Pretty cool idea.
I’ll test this device with stock software for a few days and will report back then. I’ll also post some photos done with the camera.
I’m going to have a shower now… WITH PHONE!!! 
Cya
Edit: Check this https://www.youtube.com/watch?v=o3yMw2L3tJA