I noticed several posts on this connector. Having used the simpler G&H 90 degree quiet plug, this seemed like a very nice engineering approach and an improvement, as the switch contacts were sealed for life. They also have a very well engineered cable retention strain relief which is the best I've seen.
I bought 5 of them from Mouser at about $10 each. I made up several cables for my band members and myself. So far, 4 of the 5 have failed in use. All have had light use and failed fairly quickly because the magnetic doughnut becomes stuck in the housing in the retracted (on)position.
This happens because the shaft body (electrical connection end) can move in the connector body while inserted into a guitar jack. Once the 90 degree alignment between the shaft and body is off a small amount the magnetic doughnut becomes stuck in the recess, where it retracts when inserted. Simply put they bend slightly and the magnet binds.
I am especially careful to loop my cable back over my strap to prevent accidentally pulling the cable or damaging the jack. Even this type of careful handling hasn't prevented the failure. Initially, I thought it may have been stepped on one and crushed the connector. But since I've been very careful with the rest, it's an aparent design problem. Yes, they can be bent back very carefully, but after use a couple of uses it's back to the same problem.
I sent several emails to Neutrik, but they have never answered one. Mouser on the other hand, replaced two of the connectors at no charge, but I had them beyond 90 days, which is all they warranty them, so the other 2 failed at my expense.
While this seemed like a very good idea, they don't hold up. I still think their cable retention and strain relief method is second to none, however.
I'm going back to the G&H Quiet Plug, which is about half the cost and I've never had one fail. They just have to be heat shrunk, to supplement the strain relief.
Mike