To be honest I bought some in a bulk order for the shop and never really found a satisfactory way to crimp them so they sit in the organizer unused. I thought they would be nice for wiring a relay in a tight space. My favorite crimp on terminals are the heavy gauge "high temp" solder-less deals (with heat shrink of course).

I am too low rent to use amphenol or other milspec connectors, especially when all of my low rent electronic devices use 1/4" space terminals, etc. Living in the desert has it's advantages. When I lived East of the Mississippi River I could hear my electrical connections corroding if I listened hard enough.