I have one (an older design) and I find it works great. My bathroom is in a townhouse, with no windows in that room. Even after years, I sometimes reach for the light switch to turn it off when it is only the skylight that is on. In the winter after a snowstorm, there's enough glow from the moon and streetlights to see in the room. Mine has the older parabolic mirror; the new ones use a Fresnel lense, which is supposed to be more effective. The remote fan means that it is very quiet as well. I also have the optional light in mine.