Great and safe location near the metro. The unit itself was well-maintained, clean, and well-equipped. When we were in Barcelona it was on the unexpectedly colder side for a few days (5C), and the heating system was a little slow to get the place warm (several hours) - but this is a very minor issue.
The hosts had excellent, prompt, and detailed communication prior to our arrival. Mariella was at the unit to orient us to the unit and the city, with a handy printout of information, restaurants, and a map.
Highly recommended!