Su tarta era preciosa: Aquí se refiere al aspecto físico de la tarta, en vez de usar esta frase, en el español hablado se dice: Su tarta tenía buena pinta. (buena pinta= looks delicious). Estaba buenísima: se refiere al sabor (Cuando nos referimos a que una comida está buena queremos decir que la hemos probado y sabe rico). Espero haberte ayudado

Hi Peter, there's one detail about the use of these verbs that kind of sets them apart. In contexts like the one you posted, SER is used to make a broad generality - something so obvious that you're speaking for everyone: the cake was beautiful (nobody would deny it). However, ESTAR is used to express one's own reaction - what tastes good to you may not taste good to someone else. Also, ESTAR is used to refer to a specific thing, whereas SER is, again, used for generalities: El caviar es delicioso - is something you would say if you were speaking generally about caviar; El caviar está delicioso - if you were giving your personal opinion about a specific caviar, say at a party. Hope this helps - let me know if you have any questions.

Hola, Peter En varias ocasiones he visto problemas para entender la diferencia entre ser o estar. Me parece que lo mejor para explicar son los ejemplos. Sigo con esta explicacion de esa manera Peter es una persona, no está una persona Peter está leyendo esto. Peter no es leyendo esto. Espero te aclaré un poco mas el to be spanish way verb Saludos, amigo!!!