Overall a good stay in a decent location (near metro, main central area & airport), in a modern and clean apartment. The apartment had good air conditioning / heating in all rooms. The kitchen was well equipped generally and the tv and content was decent.
We would point out some room for improvement: no mattress protector, not enough toilet paper, noisy neighbours causing disturbances at all hours of night.
We advise all potential customers to read the check in instructions under house rules carefully as the host is not flexible at all in regards to check in. Our personal circumstance meant we had a late flight into Madrid and wanted to check in late in the evening (11:30pm). Because it states self check in using a smart lock we thought this would be okay, however, after booking the property the host advised us that it is not possible to check in later than 11pm. After realising our mistake immediately, we attempted to cancel the booking - the host did not permit this.