Pros : This is an impressive number of colors for the price. The included media works like a dream (I use 2-3 drops of media plus twice that of water, for every half-teaspoon of dry enamel powder).
Cons : There are too many blah colors in this assortment: muddy salmon, muddy burgundy, muddy teal. Several bland yellows. Before purchasing I hadn't seen the color chart. If you like bright colors there are only two in this pack that will make you happy: Rubber Ducky and Majesty (bright blue).
I get inconsistent results when firing. Some patches are opaque, some transparent; some crackling occurs; sometimes adjacent colors pull away from each other leaving unpainted parts of the design.
Other Thoughts : This is not a repeat purchase for me. I'll be investigating brighter colors with a stronger (consistent) opacity.