Sari enjoyed a great deal of popularity among audiences and critics and she was dubbed "The Queen of Coloratura" and the "New Patti" by the Italian press.

During her career she appeared opposite many famous singers, including Mattia Battistini, Beniamino Gigli, Aureliano Pertile, Titta Ruffo and Tito Schipa to name a just a few.

In early 1914 Sari gave a highly lauded portrayal of the title heroine in Jules Massenet's Thaïs at the Great Theatre, Warsaw.

In the spring of 1914 Sari embarked on a lengthy concert tour of Russia with a group of Italian singers which included extended stays in Moscow and Saint Petersburg for opera performances at the Mariinsky and Bolshoi Theatres.

While Sari was on tour, World War I broke out and the soprano decided to accept a contract at the Vienna State Opera in the Fall of 1914 as that city was not facing any immediate military threat.

After a year there she returned to the Great Theatre, Warsaw where her portrayals included Lucia, Marguerite de Valois in Les Huguenots, and Konstanze in Die Entführung aus dem Serail.

In 1921 she undertook a concert tour throughout North America, which included appearances at Carnegie Hall in New York and the Auditorium Building of Roosevelt University in Chicago.

Many well-known singers such as Halina Mickiewiczówna de Larzac, Bogna Sokorska, Urszula Trawińska-Moroz, Maria Foltyn graduated from her class.