I'm not a pixel peeper, so for me this is as good as any other set of name brand filters as far as quality of the glass is concerned. I also think that the concept is top notch-the ability to change filters in a grab-and-go fashion is just excellent. I shoot quite a bit of studio light painting that often includes the use of ND filters. Being able to pop the ND off and on will be a welcome addition-in the studio. Sadly, that's about the only use I can see for these. My list of unhappiness has relegated these to the occasional use drawer.First, the most used filter, the UV, doesn't stick very well. While the other two seem quite firm, the UV pulls off easily and seems a bit small-it moves around side-to-side in the mounting ring. The other two snap in firmly and securely. I would never trust that filter to stay when out hiking or even just out and about, even though I always have a lens hood in place which *should* keep it from getting inadvertently knocked off. Then there is the issue that it is quite shallow, which should be a good thing, but the result is that the lens cap just barely catches. Then when removing the cap, the filter often comes off with it, and then can release and send the filter to the floor.I thought I would just keep my existing traditional screw on UV filter in place and just leave the adapter ring on over it to add the CP or ND as needed, but the poor attachment of the lens cover is still a problem. If this was to work, I would have to come up with some sort of carrying option as having the included pouch in my camera bag for two or three filters is a no go. That thick pouch is a nice idea, but it takes up as much space or more than many of my other more useful accessories. It is actually larger than my ultra-wide angle pancake lens.Perhaps I should write to the company and get a replacement UV filter, but even with a firm attachment, I just don't think this is for me. Consider your personal use cases and go from there.