I teach classes to adults at various locations throughout my state mainly in conference rooms large enough to accommodate up to 40 people, although the projector could easily handle much larger rooms. This projector is very light and portable. It produces a clear, bright image even with room lights on as long as the light isn't directly over the screen. The projector is quiet, the sound is barely noticeable. I route the audio from my computer through the projector, and the volume is adequate for the size of rooms that I use. The remote control works well and does all that is needed. All in all, I am very pleased with this projector. The only negative is that you will need to buy a carrying case for it; a case is not supplied with the projector.