Pros : Sets up quick,making the finished results looking great. Heats at a lower temperature than 50/50 so used after the 50/50/ you get fewer melt throughs.
Cons : None that I have found.
Other Thoughts : When I solder a lamp, I use Canfield 50/50 first on the outside and use the Quick Set for the inside and finish on the outside of the lamp. Works great.