I'm about a week into owning the x930c, and I'm returning it for a different model. I can't afford another $2k towards the X940c or else I absolutely would. I fell in love with the delicious colors of the 65" x930c, but my disgust came from the edge bleeding during grey scenes and certain dark scenes, even when the backlight is turned down,and regardless of settings. For my viewing, and expectations for black levels and dark scene uniformity, I need FALD. Unfortunately this is a rare feature and not always very well implemented. X940c would be the big dawg to get but it's out of my price range by a lot.
HDR needs a lot of work in order to be a decent experience. HDR content turns the TV into a backlight monster. Edge bleeding/blooming becomes way too obvious with HDR, and the backlight gets cranked to a degree that makes it uncomfortable to view in a dark room. I respect the tech, but it needs work.
The 120hz capability via HDMI PC connection is awesome. As a monitor, it's great set.
For the price paid, $2500, it delivers in every area except for the edges getting lighter than the rest of the screen in a lot of dim or grey content. I wish it had FALD like the X940c but it doesn't.
Sony, I love you, but it's not working out. I'll check up on you from time to time but I think we've taken this as far as it'll go. It's not just you, it's me and my picky, control freak nature.