I think the greeting is a nice gesture, though it is done at a moment it suites the ISM, which might not be the passengers' optimal moment. I got greeted as GO, last week and I could hear the assembly line of ISM introduction coming, which definitely lowers the perceived value of the greeting Also the speaking is in such rapid voice, it needs concentration to hear and comprehend what is being said, especially the name of the ISM might be an important value, just to be able to have a better follow-up later in the flight, when needed. The best greeting moment for me would be, when I just sad down and have sorted out my first "making my home for the next many hours", before I head into other items myself. It would also be the moment, the ISM could offer some service, be it an extra blanket, a drink refill or whatever. Declassifies the whole as an assembly line and values it as a real greeting.

What would increase the meeting value even more, would be a touch to make the greeting unique&new for the crew: "How may we address you ?". Which would make sense in my case, since my surname is pretty well impossible to pronounce for Asian people. This is how CI does it and makes it more comfortable for the crew to.

During meal/drink service they address you by name, though have to lookup the name from the seat allocation paper. That's not a personal service