Pros : I only use ARCO wire for my work. It is by far the easiest to use. It is well tinned and keeps shiny after polishing. I use all the gauges from 14g thickest to 22g the thinnest.
Cons : No cons
Other Thoughts : I suggest buying 16 to start if you only want to buy one to try it. It can be used for most any application and can also be twisted if you need stronger wire. 14 g is good to use for hangers and 18 - 22 are best for trim. Use 24g only if you want very thin wire. (I have them all)