About the only things that really ruin a front-projector setup are problems with light control. Any extraneous light sources will destroy contrast, as will light from the screen that is reflected back onto the screen from light-colored walls/floor/ceiling/people. Setting the screen back in a shadow box will help; a neutral grey screen will attenuate the unwanted light while still looking white if you have a sufficiently bright projector.
Given the crazy large LCD displays available, though, a front-projector is probably a bad idea. Bulb life measured in mere 100s of hours is usually an issue with projectors, and replacements can cost hundred$. LCD displays with LED backlighting ought to last thousands of hours.
Sound control is the next thing... exterior grade doors , walls and ceilings mounted using acoustic isolation techniques like z-channel will help. And, the room dimensions matter; width, depth, height must not be simple multiples of one another to avoid unwanted room resonances.