As you can already tell from the pictures, Áureo's place is something special. It really is cosy, with a lot of original and authentic furniture. A great place to spend a couple of days.
The apartment is located in a cool neighbourhood with a lot of antique shops. It is also located in the middle of the Rastro Sunday market. So expect big crowds and a busy atmosphere on Sunday. But the other days the street is relatively quiet. You can hear the neighbours sometimes (every appartment in Madrid appears to hav walls made of cardboard) but it was never a nuisance. From the apartment it is about a 15 minute walk to the Plaza Mayor.
Áureo himself was a great host, he provided towels, bedlinnen, fruit orange juice and croissants. He also answered to messages almost immediately.