The Pentel RSVP line is my favourite. I love Jetstreams and Hi-Tec Cs and all
that good stuff, but this is still my go-to, reliable workhorse. You can leave
one uncapped in a drawer full of junk for three years and it'll still work
really freaking well when you take it out.
It's a pretty basic pen. But it's also my go to red pen for grading. It writes
smoothly, and it starts immediately every time. Plus, the fine point makes it
easy to fit all my feedback on student papers. Solid pen.
I have not gotten this pen yet, but it doesn't seem too interesting. It might be
good for sketching, but that is probably it. It is way to thin, and is very
ugly. It is like a Dong-A Anyball, but a lot worst. Get a Dong-A Anyball
instead, and you will get better results.