I did use one for a few years but it has been a long time. I dont remember it being poor light quality or anything but I think that says more about how effective ceiling bouncing light is to diffuse and fill a room. I still think blasting 6000 lumens into the corner/ceiling of a room, while effective, is probably not a very efficient way to do it. I guess being one switch and having dimming makes it simple and doing it properly with multiple lights is infinitely more complex to retrofit. We have probably all tested our multiple thousand lumen flooder soda can style flashlights this way after all.