The Reverend Natural Light wrote:
Greetings!

I'm about to paint a newly finished basement. I have zero experience
painting interior surfaces and am not sure what the ideal method would
be:

All the rooms are empty, there's no flooring yet, and masking
shouldn't be too difficult. I'll have to paint ceilings and several
doors. I'm in no hurry, just want nice results.

Any opinions or advice?

If a brush was good enough for Michelangelo...

Bear in mind we're STILL admiring his stuff.