Eh...nothing to write home about for me. I've been spoiled by pens like the Pentel Pocket and the Kuretake brush pens, so the felt tip doesn't do much for me. It's definitely a better quality felt tip than Pitt or Sakura brush pens at the same price.

For me, I'd rather save up and just buy a Pentel Pocket. However, if you are a fan of the felt tip brush pens, this would be the one to get.

However, the pen itself is very attractive, so I can't mark it too low.

Incredible! This pen came with the Noodler's Emperor's Purple eyedropper 4.5oz ink bottle, and it is one of the most incredible pens I've had the pleasure of using. I am back to buy more so that I can add an o-ring and use them with other Noodler's eye dropper inks! While the lines created by this pen are too broad for most of my day-to-day uses (taking notes on college ruled paper), I still enjoy the feel of this pen when I'm writing notes to friends, creating my "to do" list and even making a shopping list. I firmly believe that nothing beats the Platinum Preppy fountain pens (fine tip), Platinum Brush Pen and Platinum highlighters and sign pens. Oh, and save money by buying Noodler's ink, adding a rubber o-ring (jetpens has instructions online) and refilling your Platinum pens! I now own two dozen different Platinum pens that I've retrofitted with o-rings that I've filled with ink... no problems so far!

Creates nice expressive dark lines that are waterproof to boot! So it partners well with watercoloring media. Just need to continue testing the resiliency of the felt brush nib and the durability of each ink cartridge. Ideal tool for cartoon sketching on the go.

I brought this to fill in large black spaces in my manga drawings and it works just fine. The cartridges can be easily refilled with ink. My only complaint would be that the clip comes off too easily.

This pen is really solid! It's nothing incredible, it's really more of just a felt pen/marker with the plus side of being refillable.
I can't, however, give it a bad rating since I do love it a lot! It writes very smoothly and the ink it comes with/is compatible with is nice and dark! It's kind of like a generic sharpie but with blacker ink, and slightly better line variation. It's definitely not gonna give you hair strand thin lines and it's made of fairly cheap feeling material but I feel that's to be expected with the price.

It looks cute and works well and that's good enough for me. I wouldn't recommend it for those of you who have been spoiled by nicer brush pens (Pentel Pocket brush pen, for example.) but for someone who's looking for something cheap, appealing, and functional, I'd say it's a pretty good choice!