I've used scissors since I was a child, so accuracy is not a problem. A few years back, I finally invested in Kai 9-1/2" Dressmakers shears and received comparable Ginghers as a gift two weeks later. So happy I have both! They each cut differently and use my hand muscles differently and place pressure on my arthritic fingers differently - so switching between the two is so helpful.
I helped my niece cut out her first pattern made dress with rotary cutters as the fabric she chose was the slipperyest I'd ever dealt with. I also bought a small rotary cutter and small mat just for trimming thrift store silk neckties into hongkong binding strips. Other than that, cutting an entire garment with a rotary would definitely irritate my carpal tunnel. (When forced to use one of those newer styled veg peelers with the blade perpendicular to the handle, my carpal tunnel is screaming halfway thru my first potato - I switch to a paring knife.)
As for notches, I don't cut them at all. I use my conté pencil (chalk) and mark them. If I think the chalk won't hold on a fabric, I use a felt tip and just make dots.
If I were to ever take up quilting, I'd definitely use a rotary. Cutting straight against a straight edge doesn't bother my carpal tunnel, but stretching my arm and free handing a curve is really uncomfortable.