Let me start by saying these foam adhesive pads are a mixed bag. On one hand, they're incredibly handy for quick fixes and DIY projects, but on the other, they can be frustratingly temperamental.

The good: These pads are surprisingly strong when used correctly. I've used them to hang lightweight wall decor, secure tablecloths for parties, and even keep picture frames straight. The adhesive holds well on smooth surfaces like glass, wood, and tile when properly applied.

The not-so-good: Don't believe the '3M' claims - these aren't genuine 3M products. The adhesion is decent but not industrial-strength. I learned the hard way that they fail miserably in hot conditions (my outdoor decorations came crashing down on a warm day). Also, removing them can leave nasty residue - definitely test in an inconspicuous area first.

Pro tips from my experience: Clean surfaces thoroughly with alcohol before application (this makes a huge difference!), press firmly for at least 30 seconds, and let them cure for 24 hours before loading weight. For removal, a hair dryer helps soften the adhesive.

Bottom line: Great for temporary indoor use where perfect adhesion isn't critical. Would I buy again? Maybe - but only for very specific light-duty applications where I don't mind potential failure.