 The Earl of Mount Edgcumbe wrote that his voice was "very beautiful", but the critic Henry Chorley described him as "a meritorious musician with an ungainly presence; an actor whose strenuousness in representing the hunger of the imprisoned captive in the dungeon trenched closely on burlesque".Haizinger retired in 1858, and afterwards appeared only occasionally.In Karlsruhe, he expanded the singing school he had started during his stage career, and he edited educational books for singers.