Both the fine line tip and brush tips of these markers are easy to use and the colors have a decent range to them. I swatched the colors on a passion planner page, there was faint bleeding with some of the darker colors but can see myself using the lighter colors both in coloring books and in my planner. In the coloring books I'm using I haven't noticed any bleed through with their pages, but the paper feels a bit thicker than the planner's pages.
I love the container for storing the markers, too, it's a pretty design and makes me happy. I thought it was handy that they included replacement marker tips with instructions, I haven't had to use them yet but it felt thoughtful.