Marta's flat near Reina Sofia was very cozy and comfortable. It was a pretty convenient and short walk from the Atocha station. You can tell Marta is a very experienced host - she was waiting for us outside the flat and she had a tourist map of Madrid ready for us when we arrived. Also, be prepared to give out your passport number, as this is now required by the police. The flat was pretty accurate compared to the pictures posted and you can tell everything was newly renovated. The bed posted in the picture was HEAVENLY - it was like sleeping on clouds. If you need a bigger space, check out some of Marta's other flats in the city - they are all gorgeous according to the pictures. Marta was so nice and welcoming that I would definitely stay at one of her many flats again.