Yesterday I did some test with the NZ3. The source was Apple TV4k with Amazon and Netflix content.
Bright scene in 4K HDR are astonishing, but in dark scene the blacks are not very convincing.
I'm in a living environment with white walls and two large windows which are generating some reflections.
During the bright scenes it seems like I have turned lights on in the room. Screen is 1.2 gain.
I think this NZ3 should be used with high contrast gray screen to express the full potential.
Overall I'm very happy, I hope to improve something with the calibration and with curtains to the windows
Giuseppe