Casa Azul is charming - decorated with such character, and so spacious! Leonardo is a great host - very responsive; we asked for a second key and it was in the lockbox within an hour. Good wifi, and a clean space. Good area too - with the cinema just round the corner and I'd recommend a short walk to Cucurucho for a coffee.
The mattresses aren't the comfiest, but then I'm very picky! Worth noting that the sitting area hardly gets any natural light in the daytime. However, in the evenings that isn't a problem, as the overhead lights and lamps are good and well balanced across the apartment. The bedrooms get the most natural light, and I enjoyed sitting out on the patio surrounded by plants.
It's well priced and I'd recommend for the value.