Had a great stay at Gustavo's place. I can only highly recommend it! The location is very convenient. I did everything on foot. Sol (centre) is at walking distance, and so is Atocha station if you wish to take the train for a day trip for example. The place in itself is very nice. Everything is perfectly clean. The room is cozy and comfortable. You have your own private bathroom, and Gustavo will even lay out for you a nice breakfast in the morning. Gustavo was also very easy to communicate with and responded very quickly. In the end, a very pleasant stay, in a city I'd like to come back to someday!