Mercedes was awesome. She was very friendly and very knowledgable. She gave us great advice on where to go eat and how to the take metro (which was really close to her apartment) the location was great. About a 20 minute walk from the beach and 5 minute walk from the metro. Apartment is on the 5th floor and there's no elevator, so be prepared to walk up about 100 stairs with your luggage. Apartment was very clean and stocked with everything you need... Coffee, water, snacks, and food. Our room had an air conditioner in it, but was still a little warm. We slept with the main door open and it brought in a lot of cool air from the living room area, so that was good. Her sangria were so good!! I would totally stay with her again for my next Barcelona visit.