Thick enough for most applications, easy to cut and handle, not super heavy and therefore fairly easy to hang on the walls. The black color is sensitive to even small pieces of dirt and hair, so if you need pristine and clean fabric, make sure you have a clean space to work with the fabric as well or a tape roller at hand. Vacuuming will likely just make the fabric fuzzy.
We lined the walls of our rehearsal space with this and instantly got a more professional looking room.