Summary: Personal Experience I bought this projector because of its brightness and the wireless feature. I used it mostly for PowerPoint presentations and video clips in my college classes. Outstanding image. If you are educator, you may wish to consider it's sister projector LT245 which has a shorter focal lenght lens. The best part of using this machine has been the wireless card which eliminates the wires from the project to my laptop. Very good DVD picture quality at home.
Summary: Personal Experience First projector purchased. Purchased for home theater in main room of home. Throw distance 20ft, ceiling mount, image size 135" diag. 4:3. High ambient light during the day until we get curtains up, but good brightness and contrast except when sunlight shining directly in and onto screen late in the day. Much lighter than I expected, body seems a bit thin, but still solid enough. The auto-keystone is amazingly good.