I got some Winsor & Newton ink (not a sponsor) and wanted to start using it but then I thought I should test it out and would like to share my results!
Winsor & Newton colored ink
Waterproof: No/not really
Alcohol marker proof: Yes
I noticed the ink bled when I applied watercolor over the dried ink. Though it looks like you can get cool effects with it, be aware that it will bleed when you apply water over it.
I have some Copic markers (alcohol based markers) that I applied over the top of some dried ink and it didn't bleed, to my surprise.
I drew with it and it dries fairly quick and holds its pigment well when deluded with water. I only bought two colors, but they react the same.