I BOUGHT THE SONY XPERIA Z 3 weeks ago for my wife and have used it more than her. I own a Samsung Note2 and am already ready to exchange it for her experia Z.
Pros:
(1) Camera is a DREAM camera not just because it is 13MP but because it has superior auto which means you will look like a star when u take a pic using it-beautiful looking glowing skin automatically, Front cam 2.2 great too-far superior than the new LG Pro cam
( 2) The size 5 inches is so perfect it fits in my pocket so comfortably that I still cant believe it is just half an inch less than my note2.
( 3) It has a resolution of 1920 pixels compared to 1280 in my phone which means videos look more beautiful and have a larger range of colors that you will ever see in your life.
( 4) It has the latest version of android and great internal storage free with the phone 16GB which will last quite long, 2gb ram makes your phone work smoothly.
( 5) It is water and dust proof.
Con: The loudspeaker is feeble but what makes up for it is when you put on the headset the quality of the sound is so great that it will take you to a different world.