My favorite things about the Z2 were definitely its water and dust proof abilities (even though Linus barely touched on them lol) and the front facing speakers. I just got a note 3 a little while ago, and while its side-mounted speaker is better than a back-mounted speaker, it's still a far cry from the awesomeness of a front facing speaker.
My favorite thing about dbrand is how they're great about sponsoring the youtube tech community! It's awesome and the skins really do look great.