Oedipus Rex is really great, it might actually be the best story of the -1st millennium. If you're interested in ancient Greek literature it's much more approachable than Homer's epics. The second play, Oedipus at Colonus, is alright and does enough to continue and resolve the story. The third play, Antigone, bored me to death. Maybe if I cared about ancient Greek funerary traditions as much as an ancient Greek I would have liked it more, I should really give it a re-read.