For the price, this is...
For the price, this is a terrific little refillable brush pen! I keep one in
each of my sketch kits--they are good for expressive lines from broad to very
fine, and are compact enough to take anywhere. Like all the Pilot Petit pens
I've tried, they are very reliable. And, a big plus is that they are
refillable--I can put whatever fountain pen ink I want in the cartridge, and
because the pen body is transparent, you can see how much ink you have left.
For people worried about the small size (which I like), the pen cap posts, which
makes the pen standard length. I think these are a terrific addition to any
artist's kit (and they're fun, too!).