I watched La Fille du Régiment by Donizetti at Met. It was comically performed and very funny. At the same time, so beautifully some of the songs were sung, I fell in love with this relatively unknown opera. The two leading singers, Diana Damrau (Marie) and Juan Diego Flórez (Tonio), did a great job. One of Flórez's arias in Act I was so impressive that the ovation lasted for minutes. I also liked a full range of emotion by Damrau.
The Met Orchestra was superb as always.
Another surprise is that the famous Kiri Te Kanawa took a role of the Duchess of Krakenthorp in Act II. I didn't know this and wondered why the audience gave her applause before she sang. (^^;