"...as did (sung stylishly) the bass Marcin Gesla as the other brother who vows never to marry. Gesla was able to hold the stage whenever he appeared."
"The Polish bass Marcin Gesla made Nathaniel (aka Masetto) far more noticeable and symphatetic then usual,..."
"Most vocally impressive is bass Marcin Gesla as Osmin, the buffoonish overseer...."
"The spa is overseen by the splendid Marcin Gesla as Osmin. With his imposing stature and richly satisfying bass, he brings a wonderful comic touch to his role as the Pasha’s mean-spirited henchman,..."
"But it was Marcin Gesla's Osmin that stuck most firmly in the mind, his booming bass and slightly confused demeanour making every second he was on stage an absolute treat."
London city lights
"Marcin Gesla turns in a top class bass performance, showcasing real richness in his voice and acting as a decent comic foil to tenor...."
"Polish bass Marcin Gesla throws himself head first (sometimes literally) into the role of Osmin, the buffoonish assistant who runs the boot camp, with vibrant vocals and effortless humour."
"Marcin Gesla with his deep bass deftly managed those unfathomable low notes."