It's been in use for over a decade in that world and, so far, seems to be doing alright. Do I still keep one hand on the camera while I'm using this strap? Usually, yes, but that may fade with time, ...

Do I still keep one hand on the camera while I'm using this strap? Usually, yes, but that may fade with time, provided it continues to not drop my camera. Beyond the convenience factor of the QD ...