I use the projector as a trainer in seminars and am thrilled. Had the same projector used before in a conference hotel and was delighted that he is to have as low. Even on the day when the sun is not directly shines in, it provides a sharp image. At a distance of 5 meters +/- to the screen, the projected image has a diagonal of about 2.80 m, which is perfectly adequate for a conference room with about 30-40 participants. The ventilation is not so loud that it disturbs. That might be the case if you look on a small scale in the living room movies. For seminars and classes but the projector is super. The remote control works only if the projector is additionally witha USB cable connected to the laptop - which is in the small print of the manual, available on the Internet. The remote control works smoothly, regardless of whether they are aimed at the projector or the screen. In the supplied Transpottascheist the projector perfectly packed, small, light and ideally suited to take away. I am simply thrilled and give a strong buy recommendation !!!