* holding a rug in place (the adhesive didn't mount very well to the rubbery surface of the rug bottom

Generally, it worked well for its intended purpose but some edge use cases had issues, generally involving the adhesive and the nature of the product (pull-apart).

* mounting on uneven surfaces or overly shiny surfaces (the adhesive wasn't sufficient in those cases)These strips are NOT the kind that you can remove entirely from the wall without damaging the wall.

"fasteners").The adhesive could use some work

I found the adhesive to work great on smooth, flat surfaces, but to be less effective on irregular surfaces

The adhesive is very bad.

As the other reviewers have noted, the adhesive on it is only usable once and may need to be reinforced for heavier items

The fastener on this is plenty strong but the adhesive is inadequate.

The adhesive they use is very strong

However, that said, you should know that in the hot summer the adhesive *will* weaken and probably fail if you try to detach the 'velcro'