Is it advisable to paint interior walls with a sprayer?
Pro: Quick TO PAINT. ONLY.

Con: you have to mask everything, but EVERYTHING, you don't want covered in paint. Floors, windows, toilets, sinks, outlets, switches, lights, the works.

Con: not good if you want more than one color, or yet more masking needed.

Apartment complexes that paint everything white and replace the carpets (and nearly everything is carpeted) afterwards find them "efficient" - most other people get the whole job done a lot faster with a roller and brushes.