No loose connection of course, and I am quite confident in their lifetime that will exceed certainly by far mine except improbable oxidation ...
For gold plated I have not been able to verify but I challenge anyone to put me to prove any difference in acoustics between several types of plugs. At some point we must still down to earth.
In short an excellent value and a product that makes life easier when you have to connect or disconnect from time to time its elements. Go for the eyes closed but ears open!