This is one of the best pens I've ever used. Beautifully smooth writing, even on low quality paper.
Feels good in your hand and the grip material extends all the way up, which is nice for writing.
It is a bit difficult to twirl the pen between your fingers if that's your habit, and the silver coating on the very tip sometimes flakes off, exposing the plastic. This generally happens only after hard use or abuse, but these minor details are a single bad drop in a lake of otherwise wonderful performance.
Again, this is the best roller pen I have ever used. After I tried it the first time I went back to the store and bought half a dozen more.