I'm a long-time Marvy Le Pen user, and this is another hit in their lineup. These are my favorite extra-fine brush tip pens. The tip is very flexible, and has a great lifespan. I use the Tombow brush pens in hard and soft, and both have a tendency to fray over time. So far, after a year of monthly use, the tip is the same as the day I opened it.
The line is a little hard to control, and not very forgiving, when brush lettering. I have an intermediate amount of skill with brush lettering, and would recommend that folks find a few youtube tutorials on brush lettering before really diving in. That being said, these are a great intro to brush pens for the price point. I also adore the pastel palette these are available in!

These brush pens are a great find! Love the colors and the size/style of the brush tip. This lavender color is super subtle and pretty, great for creating shadows under darker lettering.

Writes good, pretty color.

Nice little pen, the color is lighter than I expected so I'm not using it as much--but that's not the pen's fault.