Pros : I'm really enjoying this dichroic pack. There is a decent variety of glass. It's nice to be able to try several different kinds of dichro, without having to buy a bunch of each. I'm using the dichro for jewelry, so it will last for several projects.
Cons : At first I thought it was rather expensive for the amount of glass you get, but then stopped and figured out how much it would cost if you bought a 4" piece of each glass. It wasn't so bad after all.