If you manage to stick them without them falling off, they do their job just fine! Unacceptable quality of double-sided tape.

The adhesive can't really handle heat so you have to land the installation first try as to not weaken it

I bought it with the logic that it would fit in a Spigen Xiaomi 13 case so that I could have the quality of Spigen and wireless charging at the same time. Unfortunately, no matter how I put it, the charging base considers it a foreign object and does not charge. I also tried it in a case with pre-installed MagSafe to find the right spot, but still nothing. So I do not recommend it for someone like me and the use I want to make of it.

I have it for 1 week now...
fortunately or unfortunately the packaging has 2 inside: one broke after only 1 minute and never worked again...
I put the other one in my phone case and it's working perfectly fine now, I have no issues at all for a week now...
(they are just metallic and not magnetic on their own)

Unlike other similar products, it does not have a counter for Samsung, so you put it at random. Otherwise, good construction +.

It fit perfectly in a Spigen case with a hard plastic back and it doesn't come out at all. I comfortably use Magsafe charging and accessories.