We loved the location of this apartment, in the middle of Las Letras, with all its bars and culture. We quickly became locals at Cervantes Cervezaria and El Lacon - strongly recommended!! The apartment was small but very cosy and warm, with enough hot water for two people and a good heating system which kept us warm during the sub-zero January nights. The appliances all worked well. The building is also beautiful, with a good lift providing step free access for those with heavy bags. We would have liked the apartment to have been warm on our arrival but it quickly heated up. Only constructive comment is that the floors could have been cleaner, and the bathroom sealant needs bleaching or re-doing, but this has been an issue in all the Airbnbs we have stayed in during our trips to Madrid.