Communication with host was fast.
They are not flexible on the check-in times, our flight arrived in the morning and we had to stay at a cafe nearby to wait until the afternoon to be able to check-in at the time stated by them. Aside from this, it was all lovely.
The place is just as pictured, the heating system is great, they have hot water, the bed was really comfortable, It is quiet, you have a window to the street, the wifi was a bit spotty at times but it worked, we could watch movies.. and most importantly, the location is perfect, right in the center of Madrid, close to a lot of activities and restaurants. I would stay here again.