Our experience at Bibiana & Gigi's was quite below our expectations.
Bibiana's mother, received us quite well, showing us, the room and the bathroom.
We were very excited about Bibiana & Gigi's Airbnb description & comments, but, as they never showed up, we never had the chance to benefit their good advices nor their warm welcome.
The place is tiny, and the pictures on the site are not very realistic. That is why I think the price is a bit overdone.
Otherwise, it is perfectly situated, between la Puerta del sol & la Plaza mayor.