Really like the 3D Cards because it's a different experience to look at them instead of just a photo print. If you look at it from the front it really feels like there is more depth to it, drawing you in and if you tilt it from left to right (and back) it feels a bit like things are moving. Because of this the lines of the painting are a bit jagged (so both the photo prints and 3d cards have their pros and cons).
There is also a protective film you can easily rip off, I'm not sure if it influences the "viewing experience" though, I think it's just to protect the surface from scratches (I had't removed it yet before taking the pictures hence the scratches).
It's really difficult to show it in the photos sorry also sorry for the sunlight. On bilibili I saw a video where they tilted most of the earlier cards. You should be able to find it by typing the Chinese characters for MDZS and Kaze or 3D.
So far I've only had good experiences with CQL Derivs!