I know a Michelin star doesn't necessarily denote poshness but it probably helps give your dining experience the extra kudos that you're looking for
https://www.viamichelin.co.uk/web/R...s-Brighton-_-Brighton_and_Hove-United_Kingdom
https://www.viamichelin.co.uk/web/R...s-Brighton-_-Brighton_and_Hove-United_Kingdom