Cons:Expensive and unlikely I am going to refill it.
I really hate cheap pens. Cheap pens tend to blot out ink. The Pentel RSVP pen is different. It has the ease of use like a gel pen, but has the reliability that a ball point pen needs. It can be used making carbon copies, also smoothly writes so that you can quickly get your prose done. It has been a very comfortable pen to use and is great when you are writing furiously.