I bought a version of this pen not long after I finished the draft of my first book. The idea was that I wanted a precise pen as well as something I could carry that had multiple colors for note taking and editing without taking up a lot of space.
It has quickly become my first choice for on-the-go moments.
The grip is wide and comfortable and while my light version I got off of ebay feels a little flimsy it has held up well so far.
If you are also a writer who is often traveling I feel pretty safe recommending this pen/pencil to you.