We were very lucky to find Arnaldo's apartment available for a Saturday night when we were passing through Madrid. It was perfect for us as we had an early train the next day from the nearby station. The apartment was very comfortable, the check-in process while remote, was well explained via email. The apartment had air con which we appreciated on a warm evening, it was also very quiet inside and we slept well. There is a small kitchen perfect for a quick breakfast at home. The only comment I have is that the bed is two single beds pushed together which did not stay together very well, so not ideal if you are looking for a double bed for a couple. In saying that, the beds and pillows were really comfy. A cosy apartment, great for a night or two. Thanks Arnaldo!