We bought this screen on Amazon based on the reviews and the needs of the size and format. It certainly delivers.
The build quality is excellent. There were no instructions! so warning...it ended up being no big deal.
There is a 4 step list on the Amazon description in the ad for it, listed in the several images attached to the ad. Also there is a high speed build video on you tube that you can follow for it, if you do a search for this screen. In the video there is a cross bar that the 120 inch model doesn't have, and in the video it seems to come in more sections. Maybe the manufacturer made it with solid top and bottom so there was no more need for a center brace.
When you put the clips in that hold the screen, there are little arrows there for guidance as to where to place them. Use them, BUT don't be afraid to move them slightly here and there, once you are stretching the screen around and anchoring it. They may need to move to match the anchor holes so there is no binding of the material. Don't worry. The surface is flawless in the end.
Anyway, it took 1hr and 10 mins to build, but if I had to do it again, it would take about 30 mins now that I know how.
Hanging on the wall was a snap. It has sliding hooks so you can move the whole screen left and right after hanging on wall studs with screws and a level.
The black borders are really nice, with black velvet to catch any spill-over and it looks very good on the wall.
The picture quality is stunning in our opinion. We are using the BenQ 1070 projector, (also I highly recommend it too), a completely blacked out theater room, and the combination is awesome.
I recommend Gamma be set to 2.8 on the 1070 to really get the blacks dialed in. We immediately invited over some friends who are in the market for a screen, played a snowboarding Blu Ray from Alaska ("The Art of Flight") , and they immediately went home and ordered it. Highly recommend!
It looks really really good. No problem with colors either. Very vivid and rich picture in our opinion.
Hope that helps.
Waterbird - Keep watching the site. I had the same thing happen then they came back available a few days later.
XBL - Mr Frisch
Steam - Sneaky Pete
I also emailed these guys and they were very quick to answer any question.