I'm sure this has been covered but could not find any recent opinions.
I have the x55r in hand and it looks great-good convergence, sharp image, no pixels I can see that are out.
It is a b-stock unit.
Ability to accept native 4k signals has not impact for me.
It does have a couple issues
1. If you hit the [C.M.D.] button on the remote it brings up the settings for frame interpolation.
When you hit the button again it closes the menu and produces the image below.
The only way to resolve the issue is to navigate through the menus to the frame interpolation, switch modes and exit.
JVC support has no answers or solutions.
I can live with this as I never use this function.
2. Lamp instability that shows up as gamma spikes that fluctuate around 90-95
3. Very slow input and unstable switching. Added a HDMI extender in line and improved stability but its still really slow.
4. Is it normal that when focusing the image shifts quite a bit? despite this I'm able to achieve good focus.
Image from using the CMD button.

I have the x55r in hand and it looks great-good convergence, sharp image, no pixels I can see that are out.
It is a b-stock unit.
Ability to accept native 4k signals has not impact for me.
It does have a couple issues
1. If you hit the [C.M.D.] button on the remote it brings up the settings for frame interpolation.
When you hit the button again it closes the menu and produces the image below.
The only way to resolve the issue is to navigate through the menus to the frame interpolation, switch modes and exit.
JVC support has no answers or solutions.
I can live with this as I never use this function.
2. Lamp instability that shows up as gamma spikes that fluctuate around 90-95
3. Very slow input and unstable switching. Added a HDMI extender in line and improved stability but its still really slow.
4. Is it normal that when focusing the image shifts quite a bit? despite this I'm able to achieve good focus.
Image from using the CMD button.