You obviously get what you pay for, and admittedly, I did not use this as intended. I purchased to use as a temporary screen for my golf simulator while the custom screen was delivered. It worked pretty well for that purpose, but I only had installed for a month, and it was pretty beat up by the end of it. Most of the rivets had come lose, and the screen was noticeably stretched in certain places. It did give a very good image before I started smashing it with golf balls.
I think the idea of rivets in a screen like this is fundamentally flawed, because it makes it very hard to get a flat image. Would this work just fine as a temporary screen, maybe for outdoors or something like that? Yes, and I certainly think its a good value. Would I use it as a long term permanent solution for a projector setup, No I would not.