Trade off with the Z3C and the only reason I didn't get it is that its only a 720p screen instead of a 1080p one.
The size is beginning to get surprisingly comfortable - my S4 seems tiny in comparison. I like they've kept the uniformity of the device - sold with this 'omnibalance' thing they keep banging on about
So - four issues I've come across so far:
1)- No way of getting access to the flashlight easily (prob need a third party proggie)
2)- No 'program monitor' like on sammy devices - found that handy (again third party app prob sort that)
3)- NZB Air widget keeps taking up two lines of space instead one restricting how many additional icons I can have on that same page (prob need fix from them)
4)- It's a dust and finger print magnet! - The price I'm happily paying for its smexiness
Compared it to my mates Nexus 5 - its actually not that much bigger at all! - only ever so slightly taller (about half a centimetre) yet thinner.
Screen wise - I'm pretty impressed with the quality of the screen - I can't tell the difference between my S4's AMOLED display other than the Z3's doesn't blur in the menu's like the S4 used to.
Oh and I do miss not having an IR Blaster to be able to turn the telly down in the back room but heyho - me other telly has an app for it so its all good :>