noun which may take the genitive case particle 'no', noun
very popular; highly acclaimed; rave reviews
Used for products, events, performances, etc. that receive overwhelmingly positive reception. Often appears in promotional or review contexts.
新発売のスマートフォンは大好評だ。
The newly released smartphone is very popular.
彼の新作小説は大好評を博した。
His new novel received rave reviews.