I my case I have very slight myopia (<-0.75) in both eyes and IPD 63 so in theory I should not have the need for glasses in Pimax 4K.
Since I have owned Rift longer than Pimax 4K, I have always felt that there is something special going on with Pimax 4K lenses - and based on forum so have others. Pimax has stayed on the shelve most of the time.
Now I have customized lenses, which are not exactly the same as regular eye glasses. The difference is stunning - I did not realize how sharp the image can be (=FIXED for me). The device is now what I expected originally - with 100... serial. The "4K" gets now justice and I choose this headset over Rift's godrays and SDE with ease, especially in high contrast games like Elite Dangerous. Controllers and some software are still the reason for me to keep Rift.
I hope Pimax does not ruin 8K with god rays.