It was very easy to install in a Spigen case for iPhone 13 Pro Max. The packaging includes a special cardboard with markings so that you can place it correctly, but the magnets guide it on their own as well, as when you bring it close to the phone, they go straight to the position where they should stick due to magnetism. It was tested on the N54 base of the same company and so far (about a week) everything is fine. It magnetizes well enough to get the job done. For about 5 euros, it is a decent solution. I have not tried charging it wirelessly, so I have no opinion on how it behaves in that regard.