All of the negative reviews here are from people who lack common sense and basic knowledge of DIY, have unrealistic expectations, or both. This product is INCREDIBLY strong if you USE IT CORRECTLY. If you expect it to adhere to a low surface energy substrate like foam or cardboard, then no, of course it isn’t going to work well. If you use it on a proper HIGH surface energy substrate like glass, acrylic, ceramic, plastics, you know, things that you can expect it to adhere to, it is phenomenal. Of course if your intelligence quotient is mid-50s and you try to put it on things like wallpaper and then remove it, then you will be unpleasantly surprised at how difficult life can be. I used this product to mount emergency lights to interior vehicle glass when there was no other practical option, and to get them off I had to inject Goo Gone with a hypodermic needle between the tape and the glass to remove them. Even then, they STILL took a significant amount of effort and left residue behind that I had to clean off. Fantastic strength when used PROPERLY. Pro tips: CLEAN your surfaces with alcohol. Isopropyl, methyl, ethyl, I’ve found it doesn’t much matter. If it’s a surface you cannot clean with alcohol, guess what? NOT INTENDED FOR THAT SURFACE! Avoid touching the tape with your fingers. When you adhere, PRESS HARD AND HOLD IT FOR 30 SEC! The only con I would agree with is the backing tape CAN be very difficult to remove. The best thing I’ve found is pick at it with the sharp point of a knife until it comes up and can be grabbed, or using a VERY sharp razor blade, slice into the backing to create an inner edge you can pick at. Either way, have the tape already PROPERLY ADHERED (see “30 sec” above) to whatever you’re trying to mount.