Eva Marton is wonderful in the title role, both in acting and singing. Particulary in act 2 scene 2, where she subtly conveys the reactions she recalls in act 3. Watch her face when Calaf tries to kiss the hem of her robe. Placido Domingo is also effective, showing Calaf's arrogance and selfishness convincingly. Leona Mitchell is heartbreaking as Liu, her unrequited devotion shining through in her voice and acting.
The Mandarin makes the most of his moment, turning what is basically plot exposition into a rabble rousing speech designed to fire up the peasants while the Emperor is portrayed as being weighed down by guilt at allowing Turandot to make her terrible bargain.
The scenery is magnificent, from the crowded streets of Peking to the stark elegance of the palace garden at night. The most stunning moment is surely the first appearance of Turandot, making good use of the Metropolitan opera's impressive stage machinery. The costumes are also beautiful and look "right".
My only criticism of the presentation is the failure to show the Act 2 Scene 2 reveal as the audience would have seen it. And that's about as minor a quibble as you can get.