Had a mask issue once and the boat handed me one with rose colored lens rather than dig my back-up out of the bag. I didn’t see a difference. It would love to see someone make a mask with Transition lens that would darken on the surface :)
I don’t like purge valves.
Photographers and hunters seem to like black skirts but I prefer clear so I can see whats going on around me.
The only mask I really hated was that 6 window Mares, besides leaks it had so much volume that when swimming on your side looking under things you could feel it trying to float up.