I actually started using Charlie yesterday and I'm really impressed at how well it works even at this early stage.
A bit like texting a mate to tell you what's happening in the news, but your mate has checked all the sources, can show them to you, and then answer questions you have.
It's not 100% yet, a few little grammar/syntax errors as it pulls from sources but impressively nothing that breaks it or the experience.
5* from me because I believe in the mission, and it's one of a very few news apps with lofty goals that actually seem to deliver on them from the get go.
I'm excited to see how Charlie learns and improves as I use it, and more users come on board.