es tan buena como

is as good as

→ ser
phrase Rare #53,453
is as good as Used to compare two feminine nouns. With “para” after the phrase, it can mean “is good enough to.”
SP: Esta película es tan buena como la primera.
EN: This movie is as good as the first one.

La comida no es tan buena como para venir a diario una semana entera.

The food isn't good enough to make me want to come every day for a whole week.

— Chainsaw Man – La película: Arco de Reze (2025)

Tu composición es tan buena como siempre.

Your composition is as good as ever.

La mía no es tan buena como la tuya.

Mine isn't as good as yours.