I think that some words are over used & cheapened like "great". To me this should be reserved for great outcomes or efforts. On the advertisements, every show is great; every toothpaste works great; etc.. What they usually mean is that it works OK.
I've heard Pres. Obama's speeches called great though there is no content; they are good to listen to because they are well written, but lack any depth. Books are called great only because the author is famous or politically connected. And so on & so on!
When asked how they are some people say "great"; when they are not as great as they think!
great (adj) 1 of an extent, amount, or intensity considerably above the normal or average • very large and imposing • [ attrib. ] used to reinforce another adjective of size or extent • [ attrib. ] used to express surprise, admiration, or contempt, esp. in exclamations 2 of ability, quality, or eminence considerably above the normal or average 3 [ attrib. ] denoting the element of something that is the most important or the most worthy of consideration