Just received and installed our UHZ65 yesterday. Upgraded from my old, trusty Panasonic PT-AR100U. Not surprisingly everything is improved, IMO.
My environment is not well light controlled. Family room, open concept to kitchen and dining area which has unshaded windows. 12' wide screen, so ~154" diagonal (IIRC). The Panasonic (rated at 2800 lumens) had enough light output for viewing from late afternoon on, and the UHZ65 appears to have greater light output, although its not a fair comparison since the Panny's bulb has a couple of thousand hours on it. I didn't think the UHD65 would have enough light output for our environment, which was a key factor in selecting the UHZ65.
Ours is a ceiling installation, and since our previous projector had limited zoom and shift, the installation was pretty straightforward. Interestingly the zoom and shift on the UHZ65 are both just slightly less than the Panasonic, so some repositioning was necessary.
The UHZ65 is installed with a Marantz AV7704 and AppleTV 4K which are all working very nicely together, operating at [email protected]
HDR 4:2:2. I installed a Monoprice optical HDMI cable ("SlimRun AV HDR Cable for HDMI Enabled Devices, CMP Plenum, 4K 60Hz, YUV444, 50ft") which is working perfectly. With 1080P signals it was possible to have another HDMI cable segment between the projector and the optical cable (an HDMI keystone jack for a clean looking installation), but for 18Gb signals that won't work. No problem, the optical cable just has to plug directly into the projector.
We're enjoying the considerable amount of 4K UHD material on Netflix (Netflix app on AppleTV 4K), experiencing the image quality of the UHD65.
Image quality (resolution, brightness, black levels) are all a step up from the Panasonic, as expected, so no insight there. So far, I haven't noticed any significant or bothersome RBE.
In summary, my experience with the UHZ65 has been great over the first 24 hours.