"Kwiecien, the Polish baritone who debuted here [in San Francisco] as Marcello in the 2004 production of Puccini's 'La Bohème,' turned in a performance marked by vocal grandeur and elegant erotic menace. His voice is burnished and full of subtle coloration, and his dynamic range encompasses everything from the most insinuating whisper to the boldest shout.

"Most interesting was Kwiecien's intrepid refusal to lighten the shadows of the role. Even at his most sonorously seductive -- in the duet 'Là ci darem la mano,' done with extraordinary insistence, and the serenade 'Deh vieni alla finestra' -- Kwiecien never let the character's dangerous side fade from view. "--Joshua Kosman, San Francisco Chronicle Music Critic,
Monday, June 4, 2007, reviewing Don Giovanni