Nice flat in nice and quiet area of the city; metro station is 3 minutes away, line takes you directly to centre and old city, Gracia is 5 minues, Sagrada Familia too, very confortable position.
Flat is rather noisy due to the traffic of road downstairs and oldish windows (need renovation).
Sergio is finishing renovation so some details will be in place soon; I expect decoration in living room will be amazing as the ne in bed room once finished.
Sergio himself is a very nice host, we had an issue with a lamp and he came to check in few minutes.
Summarising I suggest the stay!