Maria's apartment is so handy for the amazing Sagrada Familia and it suited us both perfectly! It was spotlessly clean and had everything we needed to make our stay very comfortable. Maria was there on our arrival, despite us arriving later than planned, and explained everything we needed to know. She had arranged a personal guide for our first morning, who was well-informed and showed us some very interesting places we'd never have found on our own.
Overall I'd highly recommend Maria's accommodation for your stay in Barcelona.