Received one in onyx black in a Big Daddy swag pack, and I LOVE THIS PEN! Super smooth writing and is great in the hand despite it's diminutive size. I hang mine on a ball chain around my neck for easy excuse me while I whip this out access. Just don't lend it out, you may never see it again; I got lucky. :)

I have collected a few dozen high-end pens over my life yet these are easily my favorites. I have two of them and recently misplaced one - couldn't find it for 2 weeks and missed it terribly as to search rather obsessively. The ink cartridge writes very smoothly, the pen design is simple and most effective, it's very light and perfectly diminutive. The machined sides provide great grip even when lightly held. It's not going to slide in your fingers if sweaty or oily.
I now keep them both on tethers of some sort with a quick release so that I won't be inclined to lay one down somewhere and forget. These are indispensable and I am another who prefers them over my "Space Pens." They are a true pleasure to own and I consider them the most perfectly designed pens I have ever experienced.

Like this pen. The size is ideal for a minimalist gear pack for work. I have to say the cartridge is quality, I am liking it better than the space pen refills on other pens.
I can see this getting critiques from folks with soft hands that it is uncomfortable, but not here. It does a great job, writes cleanly, stows away anywhere and with a small lanyard can be attached to anything. to prevent accidental loss.

Handy

Typical CC, Precision.