I enjoy coloring in adult coloring books and I'm always looking for products that provide a nice color range.  I own Prismacolor premier pencils, a large assortment of gel pens, and several brands of markers.  I love the assortment of colors in this set.  As with all the markers I own, these do bleed through the paper.  So, I recommend using them on one sided pictures.  To avoid the color from feathering, I color close the the edge of the picture I'm coloring.  If the color doesn't reach that edge, I then dot it lightl until I achieve the look I'm going for.  If you use these on larger areas, your strokes may show if you overlap them.  I know some reviewers said that the markers damage the paper.  I use a gentle stroke and have had no problem with my paper being damaged.  Also, some reviewers complained that the marker caps don't always match the color of the ink.  I simply took a piece of white paper, colored a stroke from each marker in the order that they are in the case, and then taped the color chart to the case.  I make color charts for every medium I use.  I don't understand people taking stars off for something that is so easily fixed.  I would say that the biggest pro of this marker set is the variety of colors.  I really can't say that I found any cons other than the feathering which is why I took off 1 star.  So, knowing that feathering can happen, I simply used a much lighter hand when coloring near the edges of my pictures.  I am attaching photos which I hope will help you if you are considering purchasing these markers.  There is a list of the colors write on the case..