Alvarez hailed for her "expressive intensity" and "brilliant execution" in "
"the Cuban-American soprano Elaine Alvarez, already heard last season in Ernani, prevails progressively in the role of Helene through to the very end of the performance, both on the strictly vocal level as well as in her expressive intensity: she offers a brilliant execution of the polonaise ‘Il respire! O transport!’ before arguing, in the great scene of the third act, ‘Que m’importe ma vie’, with beautiful piano coloring, even in the extreme high notes." - Emmanuel Andrieu, Opera Online