These plugs are of very good quality. Especially for the price. Connection is solid. Plugs and unplugs with just the right amount of force. Soldering is easy. I hope they last, but only time will tell. I use these for connecting my active speakers.
Pros:
+ all metal build with nice finish,
+ easy soldering,
+ solid connection,
+ price.
Cons:
- none at this price.