What are some advantages and disadvantages of direct democracy?  What makes these advantages and disadvantages?

Which is better our modern indirect democracy or the Athenian direct democracy?

I will not disgrace my sacred arms Nor desert my comrade, wherever I am stationed. I will fight for things sacred And things profane. And both alone and with all to help me. I will transmit my fatherland not diminished But greater and better than before. I will obey the ruling magistrates Who rule reasonably And I will observe the established laws And whatever laws in the future May be reasonably established. If any person seek to overturn the laws, Both alone and with all to help me, I will oppose him. I will honor the religion of my fathers. I call to witness the Gods … The borders of my fatherland, The wheat, the barley, the vines, And the trees of the olive and the fig. What does this oath reveal about Athenian values? How do you think these values affected life in Athens?