I feel like they could have been a little more creative in their naming, but I suppose they used up their creativity on the Iroshizuku line.
I really didn't like this ink all that much when I first started writing with it. It's nice and smooth, but it looked a little too dark for me. The color changes as it dries, though, and the resulting color is much more interesting than I thought it would be.
Here's the water test video.