Koni’s place is extremely central to all Barcelona points of interest. The metro station is across the street (Uriquiaona/L4 line is your stop), the flat is on the 4th floor offering a sunny view, sits above a cafe offering delicious pastries and coffees, and is within walking distance of a quite a few places. After walking the city all day, you’ll be surprised to realize how close the flat is; always felt like we were one stop away- and after a long day, you take the ride rather than walk back.
We would definitely stay here again.