I was asked to set this up by a friend of mine. It's absolutely huge! my spare projector is over 10 years old (it's an old 3M one) and at less than 1000 lumens it's still brighter than this one. 1800 lumen rating is somewhat overgenerous IMHO. No zoom either and the keystone correction is a knob on the side which swivels the mirror. Hardly what you would expect for a supposedly digital projector.