The place is very well located in Malasana. It's a short walk to metro stations, bars, restaurants and the supermarket.
The apartment is located up 3 flights of stairs in a neat building, off a quiet street.
We were shown the basic layout of the unit by Felix, who was looking after these apartments listed by Emilio.
It's quite a cosy space and suitable for a couple, with a nice big comfy bed, open kitchen space with a couch and a small dining table. The bathroom was a little small but it seems the norm in Spain.
There were a few little issues we found on the first night during our stay. We mopped the apartment floor ourselves as it was dusty and a little sticky, and found that the bucket water was black. We also slept on our own sheets the first night because the bedsheets and pillows had some yellow staining and hair on them. The fan in the bathroom didn't work and some of the blinds were unoperational (but this didn't cause us too much grief).
After we told Emilio he said he'd personally come and change the sheets. We went out the next day and came back to a bed with fresh sheets. Emilio texted back that he found the apartment very clean to his standards. We then also got the building maintenance man, who was available each day, to fix the fan the same day (it only took him 10 mins).
The AC works good although some of the nights were hot because the ac is connected to a motion sensor and it would switch off automatically.
There's a washer and dryer machine with detergent but no instructions available. We figured it out though. The machine was a luxury during our trip and our stay.
It is a good place to stay if you like to be central Madrid, with no noisy traffic or neighbours. We actually enjoyed our stay. We liked it that the cleaning tools were available, especially for people like us who prefer wearing no shoes in the house and can mop the floor to our standard. By the 3rd day we were so comfortable we didn't want to leave.