According to the information from the web (and the pdf they sent me) all apartments had king size beds. Well, it seems that everyone except mine, because the bed was Queen and against the wall, so that if the person sleeping on the side of the wall wants to rise will necessarily pass over the other sleeping outside.
It is true that when I presented my complaint I got compensation consisting of a plastic card of $ xx valid for many restaurants.
Lovely location. Lovely building and services, for instance free coffee machines.
And the staff very friendly, although I must admit I never saw anyone because all communication we did was done via email, but it was effective and thoughtful, including an apartment size change warned only one week before our arrival and a free 2h late checkout.
And now comes the really important: a few days before our arrival, the entire bill of the stay was charged in my credit card. I honestly do not know what would have happened if we had not been able to travel from Spain.