Pros : Good quality and amount of dichroic and clear glass.
Cons : No white opal glass was included in my assortment - given the nice selection of clears, it would have been nice to get some white opal to use as a background layer.
Other Thoughts : There's enough glass in this package to allow you to really experiment, and I've been having a great time with it for the past couple weeks. I purchased it to supplement the meager supply of glass that came with the microwave kiln starter kit (I love the kiln, but the glass sampler that came with was pretty limited). It works well in the microwave kiln, and I would recommend this set to others who are just getting started with microwave kilning and/or jewelry making.