We anticipated the Wagner Power Sprayer being a mite messy. Boy howdy! Talk about an understatement! We taped and taped and taped, then taped some more. And plastic, a LOT of plastic was involved. And we got safety gear. And wore it. Respirators are good things. I envied Scott's bald spot after the first day of washing paint from the bits of hair that worked their way loose from my grocery bag turban. Only a little bit of paint worked its way under our taped edges. We sprayed the ceiling. Well, Scott sprayed the ceiling. I was too short - the paint turned to mist a few inches below the ceiling. Interesting effect, but not very efficient as painting goes.