Chris
Planed to hang from ceiling 15 foot from the wall. Seems the keystone causes the screen to go obnoxiously blurry with just the slightest adjustment. So the projector must be mounted level to the center of your screen. In my case thats 5 feet from the floor. Fan noise i would rate as 7/10, 10 bein loudest. Im considering soldering in some silent Noctua fans. The unit comes with a filter on the input fan which i liked until i saw the dust particles being sucked into the projector at the lens. That tells me the filter is blocking some air flow in while the fan blowing out is free causing negative pressure inside which will suck in dust from the cracks and crevasses. I would recommend replacing and set the exhaust fan to 75% or rig a filter to provide better airflow and create positive pressure. Ive only watched 3 movies on it so far. at 15 feet lens to wall i have a 150 inch screen. When your watchn a movie on a twelve and a half foot screen those tiny speakers leave something to be desired. For a movie experience they were inadequate to say the least. I tried only a couple different video formats from my usb drive,one of the formats i got picture with no audio it was .mkv i believe i did get audio on an .avi. Im satisfied with the picture it will fit my needs. With screen sized to 150 inch i can not see pixels when im farther then 6 foot from the screen. Let it be known i dont have the best eyesight. Brightness seems great for my living room which receives no outside light. Your millage may very. When choosing between all the 1280x800 china projectors out there choose one from a seller willing to stand behind the product with a warranty this seller gives one year with purchase. This is my first projector and im glad i bought it.