too-good-to-be-true offers (e.g. scams and frauds); too-good-to-be-true stories
fish, meat, and vegetables stewed in a thick, sweet sauce of soy sauce, sugar and mirin
skillful; skilful; delicious; appetizing; fortunate; splendid
if it sounds too good to be true, it probably is; there's a flip side to every coin
to manage something successfully; to be successful
skilfully; skillfully; successfully; smoothly; deliciously