Like all Sailor inks I've used, this ink flows well, doesn't feather or bleed, and is incredibly consistent and easy to use. It's an incredibly slow ink to dry, though. In my tests, it takes at least 30 seconds to dry to the point where it doesn't easily smudge. For areas where more ink has pulled up in the valley of a direction change from the nib, it can take up to a minute to dry. This is a really slow drying ink.
I was really curious to see how the ink color changed as it dried, so that was the first thing I was focused on after inking up the pen. Sure enough, writing with the ink lays down a dark line that looks black to my eyes. I wouldn't even call it black-brown because I can't discern any brown while this ink is wet. Magically, the ink color lightens as the ink dries, revealing a dark brown with mild shading. In some areas, you can even detect some dark red or rust color. It's really fun to watch this transition happen as the ink slowly dries.