I bought two packs of these to stick on 30x30 acoustic wedges and bass traps. My thought was that a good number (+6) would hold the bass trap in place, but none such luck. Even one or two lightweight panels have come off the walls.
It is a multi-use tool and works very well on solid, flat surfaces. Sadly, it lacks the robust and secure adhesion needed for textured walls, whether it's a fishbone pattern or anything else. The velcro itself is securely fastened. It's just the adhesive sides that won't do the job.
Make sure you clean the mounting surface before applying this strip. Any dust or grime will undoubtedly hamper performance.
Try this out if you wish to have a temporary and perhaps portable solution with lightweight material, such as smaller foam panels. Not recommended for anything heavier.