Finally GSM Arena has reviewed this phone. I enjoy The Verge, Phone Arena, and the like, however, for definitive reviews my go-to sites are AnandTech and GSM Arena. The others seem more like opinion pieces.
http://www.gsmarena.com/sony_xperia_z2-review-1078.php
http://www.gsmarena.com/sony_xperia_z2-review-1078.php