Wonderful color and water resistance
I love this ink and consider it a cheaper alternative to J. Herbin Bleu Austral and maybe J. Herbin Emerald of Chivor. The only downside is its tendency to smear, but it helps to use blotter paper etc. It's a lighter and more vivid version of Noodler's Blue-Black imho and works well in my largest pen which I need for my hand injury that is probably repetitive stress from taking notes while working. In any case, these Noodler inks are a slippery slope whose experiment has been tried many a time, and I am completely sold :)