discerning

dɪˈsəːnɪŋ

adjective

having or showing good judgement.

the brasserie attracts discerning customers

discriminating,selective,judicious,tasteful,refined,cultivated,cultured,sophisticated,enlightened,sensitive,subtle,critical,perceptive,insightful,percipient,perspicacious,penetrating,astute,shrewd,ingenious,clever,intelligent,sharp,wise,erudite,aware,knowing,sagacious,sapient