Yep, it can be a hassle at times... but it does work.
I had a friend who ordered something online. He had to call to confirm something. So, he used relay. They operator announced herself first and the other person refused to cooperate for it might be a scam. My friend called again and told the operator not to announce herself. She didn't, but still... person wouldn't do it. So, he called again... asking for a male operator... still wouldn't do it. Then he realized that the operator was saying "go ahead" (for GA). So, he called again... asked for a male operator... and told him not to announce himself or to use GA or any other relay lingo... just say GA to my friend if the guy finishes talking and to talk back without using GA. Well, it finally worked... whew!
