What's also fun is I can feed it a list of vocab that I want it to use, and it'll find ways to put the words in the conversation. I also ask it to go back, look at my responses, and correct for grammar etc.
It's shocking how adept it is.
What also lurks in the back of my mind is the possibility that mine is the last generation that will bother learning a foreign language at all. I think the day of the universal translator is approaching.