Location location location! On Calle de Arenal, 1 minute from Opera station, 2 minutes from Sol station.
Raul is an absolute gent, he even came out to meet us as I couldn't get the air-con working (totally my fault!).
There are two lovely balcony's that catch the sun most of the day.
The flat is secure, as seen in the pictures, and is quiet in the evenings even though it's so close to the hustle + bustle of central Madrid.
I'd thoroughly recommend Asador de María for lunch (lots of freebies!) and Mercado San Miguel.
Would certainly stay here again next time I'm in town.
Gracias Raul!