Totally worth it!

The price is not cheap, but "you" usually pay the product idea. The magnetic feature is just great. The filter keeps very well and "bears" even the complete camera - that the magnetic effect and possible "fear of loss" with respect to the filter.
The quality is very valuable and makes a very good impression. The thread properly.
The magnetic ring (to stick) holds very well, looks good, is barely visible and so thin that no limitation to the camera bag is created (from the accessories).
Desirable would be a template for attaching the magnetic ring - without this, the installation of the magnetic ring (given its size) to "fumble game" - should nevertheless fit placed correctly the first time.
All in all, really cool - I decided with this purchase for the right solution!