Pros : Easy to work with, great for decorative solder, Great shine, takes copper patina better than leaded (if you do a good job cleaning), lead free, structurally excellent.
Cons : none
Other Thoughts : Use a product to neutralize the flux and clean well (I like method mint glass cleaner). Add a tiny snip of copper wire and use a paint brush. You can get an even copper patina that is so coppery you'd think that was what you soldered with. I apply rustolium clear coat and my works have been outside in Michigan for 12 months w/o oxidation. You can use painters blue tape over the glass or nail polish remover to take the clear coat off the glass if you want.