tan buenos como

as good as

→ tan
phrase Rare #38,833
as good as Used for comparison. The adjective changes to match the noun: tan bueno como, tan buena como, tan buenos como, etc.
SP: Estos zapatos son tan buenos como los caros.
EN: These shoes are as good as the expensive ones.

Los autos usados son más baratos y muchas veces son tan buenos como los nuevos.

Used cars are cheaper and are often just as good as new ones.

No estaban tan buenos como otras veces.

They weren't as good as usual.

— Tampopo (1985)

Sed tan buenos como podáis con Gang-du.

Be as good as you can to Gang-du.

— The Host (2006)

Lamentablemente, los resultados nunca fueron tan buenos como se esperaba.

Unfortunately, the results were never as good as expected.

Quiero que todos los días sean tan buenos como este.

I want every day to be as good as this one.

Son caros pero tan buenos como los europeos.

They are expensive but as good as the European ones.

— Juego sucio (Infernal Affairs) (2002)