Pros : The deep color is very saturated. It is a great substrate for dichro jewelry. I use it in stained glass as well. So this glass does double duty. It scores and breaks easily, it always fuses beautifully with other 90coe, it come from one of the top manufacturers.
Cons : The purple is so deep it needs a strong light to bring out its color. It can often appear black.
Other Thoughts : For me it is a must have.