It was used to replace the Fairey Fulmar, and added to the Sea Hurricane on British aircraft carriers. It had a reported 19:1 kill ratio, but it mostly faced bombers and lesser capable aircraft. Pilots were well aware that if the Martlet faced the FW190 it would be at a disadvantage in most aspects.
The Martlet also did rather well against submarines, with it's 6 .50 cals.
Is my Pan Am ticket to the moon still good?