I'd like to try this, but it is quite expensive compared to Zebra Sarasa or Pentel Energel. The metal body is interesting, I wonder how different is the weight and feel to pens with plastic body.
What is best is a personal preference. Some people like their pens to be as light as possible. Personally I far prefer the solid weight of my Rotring 600s. So I recommend that you try it out.
Not at all uncomfortable once you get used to it, but the first time I pick it up after a few days my reaction is still always “wow that’s heavy”.