Bests & Worsts Reviews from Amazon

I've been wanting a brush pen to add to my calligraphy collection for a little while, so after some research, I finally decided to settle on this Pentel Pocket brush as my first one. The biggest draw to me was the ability to refill the pen with cartridges. Since I have a modest collection of bottled inks and an ink syringe, I felt that I would be able to use the included cartridges and refill them with my own ink. As I look back, I think that making this my first brush pen was a mistake, but luckily not a big one. If you are new to brush pens, this will be a difficult one to learn on since it is extremely flexible and sensitive. It requires a very smooth hand to get a smooth line out of it. Based on my experience, I would suggest getting something like the Tombow Fudenosuke Brush pen set that has both a soft and firm brush pen. Either soft or firm is much firmer than the brush on the Pentel, but after practicing smooth lines with the Tombow pens, I showed a much improved level of control with the Pentel. It still requires practice with the Pentel, but my calligraphy was now "Oh, your learning" as opposed to "You must have the hiccups while writing this" For the refilling capability of the pen, I have used up one cartridge in it, and proceeded to refill the empty cartrdige with some Pilot Iroshizuki green ink. With the refilling of the ink, the flow immediately improved, though I was still pushing out lots of black ink, After a couple days of light use, I am starting to see green tints to the ink. Dont expect this to be a quick change color pen, the feed holds a lot of ink in it that wont come out without something flushing it. There is probably a way to flush it, but I didnt want to go through that process, as I had no need for any particular color. The only real con for this pen was on the initial inking, it took a lot of effort to get the ink to flow to the brush and saturate it.