I think I'm fairly tech-savy. I've been building my own pc's since I lived on my own. I do my own OS maintenance, both for my home computer and my work laptop.
I did chose the "Give me fifteen minutes with all of the hardware and software I need and I can build a working PC", though, I doubt it'll only take 15 minutes, installing Windows takes a lot longer these days!
And about flashing my Sony, I don't see any need as I only use the PDF reader anyway
(oh also because they removed the Dutch language and the reason for me to buy the Sony was to help my mother if she had problems, so I could check on my own device what she has to do)