I am in the market for a projector and screen, both of which are to retract into the ceiling. There's no shortage of manufacturer-supplied specifications or of independent reviews for projectors. I am at a complete loss on how to choose a screen.
The physical dimensions of the cassettes into which the screen retracts vary from about 10cm to about 25cm. The prices vary from a few hundred pounds to a few thousand. Where can one find discussion of which brands are durable, well supported, and give a difference in picture quality that matters? Every installer seems to confine his recommendations to the lines he happens to have arrangements with.