Pros : Cheaper because its rolled and bagged.
Cons : None, that I know of. Like I say , I am new to this, so really I don't have anything to compare it to yet.
Other Thoughts : I'm very new to Stained glass work, especially to lead came. I really couldn't tell size by looking at pic on website. I bought this to get an idea of what it was like. Really not at all what I was expecting, or hoping. Need something with a deeper channel. I believe I could do some excellent work with the right came.