Unbiased reviews of educational products aned services I come accross in my work based in a special needs secondary and several primary schools.
I have had several of these installed at the primaries where I work. As a projector replacement they work well on paper, no shadow cast, no bulb to replace, evenly lit accross the display, less wires makes for a tidier installation, toughened glass etc. There's quite a few reasons to replace those aging projectors or if you have a new build then the increased labour costs of projector installation may well off set the overall cost of one of these.
I'd say the weight of one of these