This ink flows fairly well, but dries quite a bit more slowly than my Heart of
Darkness or my Eternal Hunter's Green. It bleeds a little bit (but not a lot)
when soaked in water, and can occasionally be rubbed around even after drying.
These are mostly not a big deal.
Note, though, that this is an incredibly dark brown. Even in a fine-nibbed pen,
I find that I can distinguish this from black only under bright white light.
The fineness of the nib is just about perfect for me; my non-fountain pens are
usually Uniball Micro 0.5mm, and this writes just about exactly like that, only
smoother. (I find my Lamy EF nib to be wonderful, but a bit too broad for
anything but prose; it's too broad for math or notes.) The tines seems pretty
well aligned and I haven't felt much scratchiness, despite the fineness of the
nib. I have Noodler's #41 Brown in it, and so far so good.
The pen does feel incredibly light. Posting the cap, which is the only
reasonably hefty-feeling part of this pen, leaves it reasonably well balanced.
This is beautifully black ink. It's as black as copier toner, but without the
slight shine that toner has, and it dries pretty fast. Spilling water on a page
of text drawn with this ink will cause it to gray the water very slightly, but
basically all of the ink stays put.
The pen is a Platinum Preppy; it's fine, but don't worry about the $3 pen. This
ink is rather fabulous.