My wife and I spent 3 days in Barcelona at Olga's place, and we couldn't have chosen a better place to stay. Olga's apartment is located in a great safe area, and the apartment is charming and clean. We walked everywhere the first day, including to the Market, the Gothic Quarter, Sagrada Familia, Museums, etc. The apartment is also conveniently located near a couple of Metro station and, after walking for a couple of days, we took advantage of the public transportation to get to places. I would certainly recommend staying with Olga and my wife and I hope to be back soon.