After reading dozens of comments on AVS about how to chose a screen, what to expect, etc. I finally bought my first screen to complement my 720p Panasonic projector. After carefully reviewing all prices and reviews online I went for a Focupix tensioned, model " Focupix TensionFlat 16:9 WidescreenTab Tensioned Electric Projector Screen w/Remote - 100"".
The shipping cost was outrageous, but as the base price was low, it was still less expensive than other comparable screens. It came in a huge wooden case (hence the shipping price I reckon), fairly easy to take apart (with a hammer though) and a very easy mounting system.
Dropping the screen takes about 10 sec. I have not detected any waves or default after 2 months, and I am really please with it.
I don't have a full HD projector and full HD player, so I can only comment on 720p content and projection, but it looks quite stunning. The only drawback is that the remote is not infrared, so I can't control the screen with my Logitech universal remote – but I knew that when I bought it.