So far Ecoline has not let me down, not a single time – and their Brush Pens are no different. These pens are in a class of their own. Royal Talens Ecoline Brush Pens is possibly the smoothest and most vivid set of brush pens I have ever tried.
These pens come for a higher price than some others, but then again the price is more than justified by the quality. They will also last a long time if used on the right paper.
EDIT: After having used these pens for over a year, they are still working absolutely great, and even though I have been using them a lot, they are still running full of ink and vivid colors. They also recently came out with more colors, see them all below. One of my all time favorite brush pens for sure!