My experience so far is limited, but I can confirm that at Palacio Solecio in Málaga, guests receiving breakfast as a benefit—whether through Hilton Elite status (paid in cash or points) or the SLH WithIN programme—are served an à la carte breakfast on the terrace, with no buffet option. However, for guests whose rate explicitly includes breakfast as part of a paid stay, breakfast is served in the main restaurant (buffet and extended à la carte menu). This was explained to me when I did a site visit at the property.