I mounted a PAF valveart on my Gibson 335 of 67, I use it for 3 years.
What I like about this microphone is the richness of sound, and one side soft and sweet that goes very well with his clear shining like twin amps, jazz chorus.
I had had before the model and my seymour jazz pickups Gibson T Top (post PAF)
The price is good value as these pickups are handmade. They can make changes later if you are not satisfied with the sound (+ or _ power, brillnce etc.). Given the price of a vintage guitar, the price of the microphone is small compared to the benefits it brings.
I remake this choice in the future on other guitars, and if I sell mine I'll keep the mic valveart.