We have one of these in our warehouse that is1500 sqft. The whole warehouse is cooled by an 54,000 btu unit. But it only brings the place (in PHX weather 120F+) down to about 80F. With this new air near our working space it brings our working space cools to about 72F. MUCH MORE PLEASANT and workable! If you had this in your bedroom or living room it would cool the whole space quickly! Super pleased! Easy unboxing and setup. We actually cut a hole in the wall and all was set up in 20 min. Cooled the space in 15 min.