This is basically a hostel on the third floor of an appartment building. It has a rustic, kind of unfinished feel, a bit less elegant than the photos show, but I actually quite liked that as it's a bit different. It would be nice to have photos of the actual rooms you are booking.
Fabrizzio's communication was detailed and fast. It was easy to access the building and my room. You aren't automatically given keys for the room, but when I enquired about this he provided keys. I didn't see Fabrizzio in person as the check-in and out is automatic, but this allows total flexibility of arrival time which is nice.
The bed wasn't the comfiest, and the walls are quite thin, but the other guests were respectful and this wasn't much of a problem. Since the check-in was automatic, there was no-one to explain where things were/how the common areas worked, but since I just needed a bed for the night I worked things out.
This hostel is in a great location and a good price for where it is! If you're looking for a hostel-type accommodation in central Madrid, I would recommend this as a well-organised, well-situated one with a helpful host.