A tiny, yet amazingly located apartment. Fully renovated and in a classic building.
Me and my boyfriend stayed there for a week. On one side, the apartment borders Malasaña neighborhood, which is the coolest neighborhood in Madrid. On the other side you can find Gran Via street, with all the shopping options that comes with it. The apartment is right behind the Primark . Supermarkets (Corte Ingles, Carrefour etc) and convenience store are around every corner.
The mattress is excellent. not too soft, or hard. The shower is comfortable. . We waited about half an hour between showers and had no issues with hot water. There was toilet paper but no soap.
The Kitchen is small. There's a mini fridge and a microwave. If you need sugar, pepper, water (bottled), bring it with you.
The area feels safe, though you'll see some prostitutes on the street day and night but they do not bother anybody. Even returning home late at night the street was very lit and felt safe.
Regarding the street noise that is mentioned in other reviews - Indeed you hear pretty much everything coming from the street but it didn't bother us.
Daniel was a good host. He waited for us in the apartment and explained everything and gave us good tips. At the end he helped us arrange a taxi to the airport.