Quiet, but does the job.
I have to admit, after unpacking, assembling the base and turning on this unit I was extremely upset. Having had only propeller blade-type fans before the air coming from this unit seemed anemic. However, having no alternative during the hot summer months last year I kept it with the thought of returning as soon as I had a replacement "in hand." To my surprise what seemed a weak fan really wasn't. The air flow is actually more than adequate in keeping us cool. Only reason for 4 not 5 star rating was do to with the lack of air flow directional venting. The oscillation is wide, but the vertical (high/low) vents have a very limited amount of play, yet it's turned out to be adequate. This is my second summer using the unit (first year in San Diego this year in Goodyear, Arizona-yes, very hot place) and it's still working fine and keeping us cool. The timer option and remote are a huge plus!