Someone in my circle of friends has the JZ1000 and IIANM he was looking into upgrading due to the JZ1000 only goes up to 4K60. And he's heavy into XSX, not into PS5. And I quote him saying to me "want all the checkboxes ticked green on his XSX." I could always ask him, or ask him to come over here to describe his experience. 

The JZ1000 is pretty good. I'd consider Panny models if they have a bigger presence, better distribution and stock availability. Panny also have released a proper 4K120Hz with working VRR update for their JZ series. . Better late but proper VRR than releasing a half-working VRR like Sony.

The Panny models are also the most accurate in terms of image quality, out of the box, without the need of calibration. Personally I'm not that hard into calibrating, I  always add my own personal preference to the final custom user setting that results in color punchier image, hence not color accurate, not the flat PQ preferred by professional calibrators.

Completely agree. I hold my defunct Panny Kuro in high regards............until it is obsoleted by the OLED tech. The Kuro used to be THE perfect black display, with warm color profile that current TVs with "Filmmaker Mode" defaults to. Too bad it's a power guzzler and ....heavy as f***! Not as heavy as Trinitron tube TVs, but still......

Did you get your JZ1000 from one of the big chain stores? If it is which one?

I cant find them anymore. No signs of the 2000 series either too.....but last I scanned  retail stores online listings was until September 2021, when I've confirmed my C1. No point looking at other alternatives when I've decided to go full on into a TV I've shortlisted. It's like picking a Miss Universe winner, you filter all the pros and cons down to the minute details.........until you screw up the winner's name on the envelope!