It'd be nice to see some more examples that show how sophisticated it is. What are some weird inputs that it can figure out? Still, this is a pretty awesome idea - definitely can see how it'll be useful for me.
So far? Omit a "St." or "Ave. in an address, in a form I see all the time ("123 Main Somewhere NY, 10101") and it gets thoroughly confused. The author(s) are uninterested in fixing this, too - I don't think they care about "weird inputs" at all.