Staying at Carla's flat was great, everything was just as described in the ad and the place was very comfortable and right next to a Metro stop with supermarket and restaurants nearby, walking distance everything. Very well connected for our purpose which was to be fast at the festival and by taking the subway we were there in 45 min (consider that Madrid is huge, so 45 min journey is a benefit for sure).
Just to thank Carla for letting us stay at her apartment and we surely will book it again if we go to Madrid again.
Goodbye and Rock On!