Damien's place was just as promised - clean, centrally located, seamless check in, responsive staff and tasty local breakfast at the Bracafé downstairs (good coffee and bocadillos).
The location is perfect - 15 minute walk to Sagrada Familia, 25-30 minute walk to the old city, easy access to two metro lines and busses that pass in front. The market next door to the apartment (literally, next door) is stocked with fresh fruit and juices in addition to the standard hams, cheeses, etc.
If you are a light sleeper or not used to sleeping in a big city, it's worth being aware that, as in any big city, a central location does come at the cost of some traffic noise in the bedrooms at night.
An excellent home base from which to explore this vibrant city - I'd reserve Damien's place again without hesitation.