Priced at good 40 plus 8.90 shipping via DPD (bulky goods, is so well packaged as about 2.20 m long), you can not complain. Most canvases that I have found were significantly more expensive. So the only question whether the quality of also true for the price.
The screen box is easy to mount, either on dowels to the wall or by means of two loops to hang from ceiling hooks. However, mounting hardware must be kept even. I opted for the latter variant. The whole measure, dowelled two 6 hooks in the ceiling, drangehängt canvas suits.
To pull down the screen there is a cord, the tension spring holds tight at the desired length fixed. Draw for rolling short 2.5 cm down and let the canvas rolled up carefully. Works great. Rolled out my canvas is smooth and gives a good, powerful image from, colors are intense and even in 3D films, the picture is very good. Strong plastic / PVC odor I could not tell.
Price / performance is top, I am fully satisfied. An image in use there at customer images.