I'm still a few k miles from Gold so not many op-up experiences to rave about, but after the Dubai-do and the Nujoum star they gave us, I always have a talking point with the crew and get fantastic service (though on one or two occasions I wondered if they thought I wasn't really an in-flight evaluator or something). ps. I don't wear it, but I keep it on my carry-on and ask them which challenge they did...works a charm!