If it"s new construction before the woodwork and floors are installed a sprayer is OK if you cover the windows and doorways with plastic.
In an existing house even the professional painters use rollers and trim with brushes. They only put plastic on the floor and tape it to the top of the baseboards, no other taping. If one person is working alone he covers one wall at a time with a roller then trims the edges of that wall with a brush. A two man crew has one person on a roller and one trimming with a brush. They carry a damp rag to wipe off any drips and spatter from the rollers before the wall is dry. They are fast. and do a good job without much taping.