Like most (all?) Van Dieman's inks, this one is dye-based. It will resist water just fine but is gentler on your pens than a pigment-based ink. You sacrifice longevity, but it shouldn't be a problem for most people. If you need archival quality ink and paper, you definitely know what to look for.
In my use, the ink behaves really well. I haven't had any instances of ink getting stuck or not flowing smoothly. My experience with Van Dieman's as a whole has been nothing short of stellar. They make great inks that behave well in your pens, are dependable when writing, and feature interesting colors.
My ink collection is notably short on one thing at this point: true black inks. I just don't have space for them and have nearly zero interest in them. I know that there is plenty of nuance and character between different black inks, but it's not something that has interested me up to this point. With Federation Point and other dark gray inks, there's something about them that I am certainly drawn to. They're trying to show you something that is hidden beneath the surface, and I love watching that peek out in the shading on the page as you use the ink.
Federation Peak is available in a 30ml bottle for just under $13, or you can snag a small sample vial if you're not sure you want the whole bottle. These Van Dieman's inks are such a great value for what you get, and I encourage to check out all their other offerings!
(Vanness Pens provided this product at no charge to The Pen Addict for review purposes.)