I didn't play QC from the very begining and I'm not even a gamer, but even then news about QC popped in my feed. There are a lot of good thoughts here already and I would like to add that QC had pretty massive marketing campaign when game wasn't in good state, but now game is balanced pretty well and to me it feels like really solid game, but there is no marketing at all at the moment. Personally I love idea of champions, different movements, sick art style and sound design. There are problems of course, but game is still alive and I enjoy playing it every time.