These pens are affordable and ridiculously smooth to write with precise lines like the more expensive ones

They are comfortable for writing for long periods of time, they run smoothly and create fine, distinct lines, and they don't smudge at all

No ink "globs" at all, nice medium-thin line, feel comfortable in the hand.

It's not scratchy like other pens and it doesn't let out random globs of ink that smear every few lines like others.

These pens can give both a nice, light line and a thick, bold one

They write great but the lines on the grip are terribly uncomfortable

They don't smudge when you write, they have beautiful colors, fluid lines, etc

The pens write a solid clean line, not thin or fine, but that's what I want.