Carlos's place was amazing - we stayed for a full week and it has everything you need including a super comfortable bed, well equipped kitchen and wifi/Internet TV. It's close to everything and the balcony overlooks the Serrano towers - perfect! It was super clean and had lots of space for the two of us, highly recommend. Carlos was super helpful and gave us lots of pointers of places to go and was kind enough to book us a taxi for our early morning return to the airport.