I've done nothing special with the lighting, and I can see everything just fine. You could in fact run this projector as your primary computer screen. It's that sharp and crisp. I've got it set up for a 12-foot throw, and a screen about four feet square on the wall. I could literally write this column, or a novel, using that as the computer screen.
Setup does require reading the manual.
I tried without it, and while I did no harm, there was a lot I got wrong. You will probably want to look at both. Once you do that, Bob's your uncle. I have left this little gem on for two days, and I have displayed text, graphics, and everything else with it. I have used it with my Compaq Armada E500, which will probably be its main supplier, but also as the video unit for other systems.