Nice appartment on an excellent location in Barcelona. The appartment is on walking distance to most hotspots like Placa de Catalunya, Barceloneta and Poble Sec. The appartment is a little cheaper, probably also due to it being situated on the fifth floor (without elevators). Not a problem for me or my girlfriend, but something to keep in mind.
There is a small refridgerator in your room, which always comes in handy. Xabier is very friendly, even bought us a beer during our stay and will try to help you where possible.