Great location, great value! Loved the view of the cathedral at different times of day and night and the location is so central, it makes a fantastic home base. Taxis to almost any other place of interest were 7-9 euros, which is cheaper than the subway if you are several people. The apartment was clean, modern and very practical. The host worked with us to leave our suitcases there, while it was still being cleaned. We loved having 4 separate bedrooms due to the constellation of our family - a rare luxury! The kitchen is adequate, although cooking large meals every day may be a challenge, but why would you, with all the great food of the city! There are many restaurants, supermarkets, bars etc within walking distance, including some that seemed less touristy (the further away from the cathedral you get, the better) e.g. "La Yaya Amelia", but even the ice cream and breakfast places just in front of the door were wonderful and so convenient. The menu of the one on the right (forgot the name, but there are two ice cream places next to each other) is amazingly large for breakfast, if you want something more involved!
I would book this place again in a heartbeat!