The apartment was beautifully decorated and Marga, along with her assistant Dani were responsive and helpful throughout the process - even when we needed a very early checkin!
The apartment is in the center of the city and only a few yards from both the Grand Via and Sol metro stations. We speak almost no Spanish and were able to make our way from the airport on the metro with no problems.
The road the apartment is located on is very busy and noisy, but the host has graciously left earplugs, so even the lightest sleeper will be ok.