Abysmally shallow. Clearly trained on documents centred upon his legal case and not, for example, of whatever mathematical talents got him a teaching position, allowed him to bluff his way past the likes of Marvin Minsky, and what (if anything) drove his investment strategies.
Obviously it can only be trained on available documents and not the abstract essence of his actual personality, "talents" or what have you.
Any attempt to model a human being like this is going to be abysmally shallow, yet for some reason it's an industry unto itself, for everything from dead celebrities to Jesus Christ to lost loved ones.