Yeah so I gave the latest public beta a try and was generally impressed:
Map Editor startup time has been seriously improved. Its very fast now
PBR assets look great and do a much better job of showing off bump / specular
Real time shadows look better with less banding and smooth edges
AI is more robust and more engaging / fun to play against
Performance seems to have taken a hit (at least for highest quality settings)
The palm trees in Big Escape now look terrible. I guess PBR isn't always the way to go
HUD images look really bad. I'm using 1920x1080 and they are blurry / low quality
Noticed a couple of minor bugs like screen shaking when shooting with iron sights
I still think there needs to be a solution for how static / dynamic lights work in GameGuru. I think the overall graphics for outdoor areas is more than acceptable now but significantly lacking for indoor areas which are equally important.
Overall I think its a good update but in my opinion if we have overhauled the graphics part of the engine, now is the right time to implement a more robust lighting solution. Hopefully now DX11 is there it would be easier to look at things like deferred rendering.