Using it in a treatment room, 10'3" x 14'10" with 10'3" ceilings. I initially got the 18" extension, but don't need it, the fan works well in the space with the rod it came with. It's beautiful, which is important as the ceiling is what people see in a treatment room. It's very quiet, at least on speeds 1 and 2. I only use 1 when in session, just to circulate air, which has helped tremendously! The "distressed koa" is indeed plastic, but actually looks fantastic, and I'm pretty picky.