Multiple choice would be most unpleasant, as my character would say things in ways that I probably wouldn't say, even if it were just the usage of the word "Dick" opposed to "Cock" lol, i'd want to have the choice... and since i'm use to playing Online RPGs, I'm use to typing things in, as well. I can imagine this system being a little tedious for someone who doesn't play games that involve a lot of typing.
Their system currently understands a pretty wide range of statements, and i'm pretty satisfied with where it is, and where i believe its headed, which is why this thread isn't about how users communicate with NPCs

but instead I was referring to the exact opposite. How NPCs communicate with the user <---
If they want to separate this game from the others, they'll definitely keep the chat system. I enjoy it, but I dont know how it sits with the majority of users.