Just a quick update after owning the TV for a day. I'm not going to comment on the image because that's been done to death already. The OS is very snappy indeed! The GoogleTV interface is a joy to navigate. Kodi is capable of decoding and playing recorded TV with software decoders (h264 .TS files recorded from Freeview HD).
I am very disappointed to see the same issues with playing these files with hardware decoders, but that's a different story.
The sound really is very good indeed and I will probably now only use my surround sound system for movies.
The feet stick forward of the display by 14cms so you can't have the TV right up to the front of your cabinet.
The in-built microphones seem to work well, even across the room, but I turned them off at the switch because I also have a Google smart speaker in the same room. Google assistant seems to be very quick when using the remote controller's mic.
YouView and all catch-up TV services are missing from the TV. I have emailed Currys to ask what's going on and the rep told me to factory reset the TV.
I'll report back with any comments they make.