Depends on the Spanish ;) I saw a barista ask a Colombian couple to speak in English because Catalan was his native language and he couldn't understand their accent.
I do get the feeling, at least in Barcelona, that the preference is Catalan > English > Spanish. I've only visited as a tourist though; so I don't know how much of that carries over to the business world.
I do get the feeling, at least in Barcelona, that the preference is Catalan > English > Spanish. I've only visited as a tourist though; so I don't know how much of that carries over to the business world.