For an HD projector entry, the picture quality is stunning, despite the fact that in my eagerness to test, I project onto the back of a white tablecloth PVC! I can not wait to try on a true projection screen. As for fan noise, I was within 80 cm of the device and I have not been bothered at all. I did not notice any rainbow sky effect (so I still do not know what it is). Installation and operation are very easy: 20 minutes after unpacking, I already took advantage of my home cinema. Finally, the Amazon service was impeccable, both in terms of speed of delivery and quality of the packaging. Given the value for a novice user like me, it really is the ideal projector. Cà was still nice that Benq, in a gesture of goodwill, offers a movie on Blu-ray for purchase, but ...