I order this item after read the review on Amazon of how the product be a great value . well , the product material seem good . the electric version -lrb- the one I order -rrb- have a nice convenience of be able to roll up the screen if need . but , the screen curl at the edge -lrb- the black part of the screen side -rrb- . unfortunately , these curl part also extend to the white surface -lrb- actual screen area -rrb- , so the edge of the image be distort . I guess you get what you pay for . if you want a distortion-free image , stay away from this product . after one week of use , I see more image distortion , so the surface be definitely not flat ! for a classroom or boardroom , this product would work well , but for a home theater application , it fall WAY short . UPDATE : I could not take the screen uniformity problem -lrb- curl and wave -rrb- , so have to return it for another brand . well worth the extra $ 84 for a elite screen !