This specific projection screen is very good. I bought it for use with an affordable projector and I did not expect it to improve the image quality so much.
It is not white. It is gray with a black frame around it.
The mechanism that opens and closes it works relatively quietly and very smoothly.
It stretches very well and symmetrically, you don't see any wrinkles anywhere.

Due to its size, it requires 2 people to hang it properly on the wall. It is important to use a level. The packaging does not include materials for hanging. The small downside is that with 2 8mm screws and the corresponding screws, our job is done perfectly.

Very good product, completely satisfied.