Googe finds that it was Black Rapid that suffered the connector failures. Kidding, I don't care what anyone uses, but for me, I do like the Op/Tech, including the connectors. They hold, absolutely no issue, yet are convenient, and very comfortable on long hauls. I remove the wide neck part for tripod uses and around the house, to shorten it out of the way. You can reconnect the two short ends together, and it makes a handy hand carrying strap. Holding the camera, you can put your wrist through it in case you drop something. Plus I replaced the Think Tank bag straps with Op/Tech too, a lot more comfortable, and slips less.
I also use Optech with my L camera bracket. It secures it nicely and the strap is also comfortable.