I absolutely loved Sarah's apartment.
Location: Very central, I could walk everywhere including town center and Sagrada Familia. Close to train/bus stations and many shopping centers. Address is easily remembered and recognizable by taxi drivers.
Condition: Super clean, neat, and quiet. Top floor with a lot of light if you keep the blinds open. Equipped with everything I needed.

Would love to visit Barcelona again, and guess where I will be staying next time...