I buy this unit refurbish for $ 450 . I mount it to the ceiling and be use a samsung 6800 3d blu ray player for source via hdmus . pro : image quality be excellent as with most dlp 's have good black , color , sharpness brightness so this be good especially if you project on a huge screen in a large room not so good for smaller room . size be small for a better look theater enviroment . 3d ready 120hz you need a 3d blu ray player and a 3d converter like the optoma 3d-xl or Nvidia 3d vision with active glass fan noise be not too bad the unit do have standard and bright mode which the fan be faster in bright mode and slower on standard mode . price i get it for $ 450 it be go to be hard to beat this at that price or near it . color wheel 4xspeed con : zoom be minimal there be not a big window of error when place this projector . light leakage come from the front air vent and I have a black ceiling and I notice it if I have a light color ceiling it would even be worse . remote CONTROL I do not like the way it be design but it do function like it be suppose to . if you debate to buy this or the acer h5360 . if you can get the hd66 for $ 550 or under buy it . the hd66 have a faster color wheel 4x compare to 3x speed and a better contrast ratio 4000:1 compare to 3200:1 . the acer do have the darkchip 3 as the Optoma use the darkchip 2 , but the darkchip 3 can not even help pass the optoma 's contrast ratio so I think this spec be mute .