We stayed for seven nights and very much enjoyed the stay! Some positives:
*Ana and others who we interacted with were very courteous, prompt, and friendly and helpful
*Excellent location. Not in the touristy area but we could walk to everything -
Joan Miro museum, Picasso museum, Rambla, even Sagrada Familia (which took about an hour walk but with the metro, about 20 min away).
*Lots of great restaurants and coffeeshops nearby. The building itself houses an Italian restaurant on the ground floor that opens around 7 pm. Good pizza and lasagna etc. and a friendly young owner.
*Loved the coffeeshop across the street.
*Quiet
*Got a good workout climbing four flights of stairs every day.
*We were able to do some simple cooking using the oven and the cooktop.
*Comfortable ikea sofa bed and a queen size bed.
*Reliable Japanese wall-mounted heating/AC system.
*Reliable WIFI signal
We'd stay again if we returned to Barcelona!