Summary: I bought this projector to replace my Optoma HD70. I have a room in my house as a designated theater with the screen, chairs, sound, lighting..you name it. I thought this would be an easy install. I was so wrong! Here is the problem...Unless you have the space to mount the projector around 2 feet above or two feet below the top/bottom of the screen, this projector is totally useless! You can't mount it at screen height or even just slightly above/below.