Much runs smoother and looks better on my £350 PS4 than it does on my £450 laptop [nVidia 635M] - same screen. But I can imagine if you've got a top of the range PC, PS4 wouldn't be as good...
UI scales fully though? In the HUD layout, click the right stick to switch scale.
I still don't get ppls issues with this. I'm running a 40" LG TV in 1080p and have the UI elements scaled to 60 or 80% depending. The 12pt font size (standard scale) of the chatlog means a capital 'A' is 5mm tall on-screen, which I can read without my glasses (which by rights I should need to see small things far away) from 6-8ft away on my sofa.
