This was very educational. I didn't realize there were so many varieties of this tea that would be so different.
I was given (by a relative) a large tin of Tie Guan Yin that came from Hong Kong or China. It is lightly roasted - and not reading Chinese I didn't know at first what I had. This explains a lot as my tea isn't at all like the darkly roasted Tie Guan Yin I've read about.
Always more to learn!