"As [Adele’s] sister Ida, Ellen Leslie made the most of her brief moments as she showed off her bright, pure soprano.”
- Opera Today, review of Die Fledermaus (Ida) with Opera San Jose
"Ellen Leslie is a sparkling Josephine, the captain’s daughter, by turns lovelorn, impish and imperious…”
- San Jose Mercury News, review of HMS Pinafore (Josephine) with Lamplighters Music Theatre
"Equally fine...was soprano Ellen Leslie’s Micaëla, the innocent hometown girl who brings greetings from his mother to the reeling Don José. Her sweet, strong tone and earnest, pained demeanor were affecting. The wrenching duet...was a vocal high point, a fluid and finely focused interplay of two excellent voices."
- San Francisco Classical Voice, review of La tragédie de Carmen (Micaëla) with the San Francisco Conservatory of Music
"Micaëla is here sung by Ellen Leslie, who displayed a bright, clear soprano voice and excellent French diction."
- The Berkeley Daily Planet, review of La tragédie de Carmen (Micaëla) with the San Francisco Conservatory of Music
"...radiant Ellen Leslie with a lovely trilling soprano..."
- San Jose Mercury News, review of HMS Pinafore (Josephine) with Lamplighters Music Theatre
"Ellen Leslie has an absolutely beautiful voice, and she gave a very emotional performance."
- Opus Colorado, review of Carmina Burana (soprano solo) with the Lamont Symphony Orchestra
"In the title role, soprano Ellen Leslie…is as pretty and stubborn a Dairy Maid as anyone could wish, amusingly repulsed by the advances of effete Bunthorne, and awed by the godlike grace of Grosvenor."
- Bay Area Reporter, review of Patience (Patience) with Lamplighters Music Theatre