Conversation so far:
When did Rosa Ponselle make her opera debut?
Rosa Ponselle made her Metropolitan Opera debut on November 15, 1918.
Did Rosa Ponselle do anything or sing anything in particular at her Metropolitan Opera debut on November 15, 1918?
Rosa Ponselle made her Metropolitan Opera debut on November 15, 1918 as Leonora in Verdi's La forza del destino, opposite Caruso.
What else did Rosa Ponselle perform during her early career besides as Leonora in Verdi's La forza del destino, opposite Caruso?
In addition to Leonora, Rosa Ponselle's roles in the 1918/19 season included Santuzza in Cavalleria rusticana and Rezia in Weber's Oberon.

Question: What did people think of her early performances?
Self-contained rewrite: What did people think of Rosa Ponselle's early performances?