I too prefer silver solder over soft solder.....it's hardier, takes knocks, doesn't fracture when older, and it flows well into the joints, with less cleaning up after. it also goes "off" very quickly.....I do use soft solder for very thin brass and copper that a normal propane pencil pin flame from my Sievert torch would normally melt, but use the torch to pre heat before using liquid flux and multicore to flow into the joint on the thinner gauge sheet such as the life belt hangers.
also when silver soldering, you can localise the area you want to solder with heat sinks, because the heat needed to melt the solder is much higher and therefor can be isolated, whereas using soft solder the heat, even with heat sinks are used, usually ends in having to heat the whole assembly in order to give the soft solder a good enough temp to melt and bind to the metal.
and finally, silver soldering is much quicker.