Yep, Off for DV dark. We didn't bother with any bright room HDR / DV settings as I'd never use them.
It's skin tones that see the most post calibration benefit on mine. I'd thought my previous Panasonic was very good OOTB but now know that was pushing red. I'd thought the Sony was massively pushing blue but it wasn't actually quite as off as I'd thought due to this.
I think given this set is pretty good OOTB, if you are already using the more accurate modes it may not be enough difference for a lot of people for £250ish. Knocking blue gain to -7 was most of the way there on mine, everything else was pretty minor fine tuning.
Ironically it's the non-avforumers with their sets in standard mode that would see most benefit from paying for a calibration, and these are the least likely to do so!