As I said, your guitar, your money, your choice. No criticism intended, just enjoying a discussion on my favourite topic (guitars), and trying to understand ‘the other guy’s POV’.

Personally, I always play a newly set-up guitar in front of the luthier/tech before I pay and take it home, then any problems can be sorted there and then (had to do that once when I picked a guitar up and the 12th fret action was too low for my liking - fixed there and then and I left a happy bunny).

I guess I’m pretty fortunate in knowing what setup works for me, all four of my acoustics (two Martins, a Lowden, and a McNally) are set up the same…

Nut slots: a hair (0.002” - 0.003”) over first fret height
Neck Relief: 0.006”
12th fret action: 3/32” Low ‘E’, 5/64” High ‘e’

…so they all ‘feel’ the same (apart from neck-profile variances, and I’m able to check and replicate those myself if anything starts to feel ‘off’, and I can give the measurements to a luthier/tech when I have a first setup done on a new guitar - usually eight weeks or so after I get it.

You didn’t mention problems with the nut - what’s going on with it?