Have used the Freewell filters on my drones since the Phantom 3 days. Always been a love/hate relationship with them. Was very happy to see K&F had CPL for Mavic 3 Pro, and at the time was the only filter available that had 3x separate control rings for each lens.

Pros over the Freewell:
- rings are taught but smooth to rotate, freewell had slack and would have to adjust after each battery.
- has max polarization mark on each ring
- doesn't have odd Green cast that is difficult to correct for in post
- clicks into front element perfectly. Freewell was always super-tight and felt like it was going to break.
- brings nice saturation into the sky, but not too much where it looks fake.

This is a must-have for me flying over water all the time. a prev review noted a vignette on the 24mm. not sure what that's about but I'm not seeing any of that on my 24mm photos - I've uploaded a raw photo show what I'm getting with this filter. also uploaded a quick video showing a subtle enhancement in the sky, while removing a majority of the reflections in these windows on front of home. Couldn't be happier with this filter, thanks K&F for making a great product here!