I can thoroughly recommend Iñaki & Ainara’s place. The apartment was located in a central neighbourhood, not far from the Guggenheim, very close to the funicular, and only a short bus or taxi ride from the airport. It also felt very safe. The apartment was clean and had everything we needed, plus some great local tips. Finally, Iñaki & Ainara were very communicative, both before and during our stay, which was great. Good value.