mikethewxguy was asking about the AcousticPro screen material. I bought a cinetension2 106" screen (model TE106HW2-A) two months ago and have watched about 10 movies on it with family and friends. What I can tell you is that the sound is great, nobody has noticed any diminished sound clarity from the center channel speaker (bose brand).
However the screen material is noticable when viewing a movie. Of all the people that have viewed it, they either have not really noticed it or they did know it was there but it did not affect thier moviewatching experience, execpt ME!! I noticed it immediatly when I was setting up the projector, but I hoped that when viewing a movie that it would not be noticeable. What I see is what I call the "weave" of the material. The actual weave is very small. It resembles cloth. When an image is projected on it however, wavy lines appear on it. The lines generally are vertical, but they do curve. They are approx. two inches apart and cover most of the screen. It bothers me so badly that I really do not look forward to watching a movie on it. In some scenes it is not noticeable to me at all, but on closeups of faces or panoramic views with lots of light colors such as the sky or a light colored background, I find it VERY noticeable. I find it strange that I am the only one that is botherd by this, my wife thinks that I am crazy because she has no issues with it at all. I think it is such a bother to me because I am sort of a perfectionest and I am looking for as close to a movie theater experience that I can get.
All other aspects of the screen are great. Excellent color retention, sharp images and quality throught.
So I would say that since I am the only person of seven or eight that have viewed the screen that has issues with it, generally you will not have a problem with it unless you are a perfectionest type.