We had a wonderful stay at Elena's place. It is in a great location and most major tourist sites are within a 20 minute walk. Tons of cafes nearby and supermarkets. Elena and Javi were beyond accommodating, allowing us to stay a bit longer than the allotted checkout since our flight was so late. They also helped us print our boarding passes and organize transportation to the airport.
The apartment itself is very clean and modern, with lots of windows and a balcony. Javi supplied some cold drinks for us upon our arrival. There is also a coffee machine and they supplied coffee pods.
Overall a great stay, would highly recommend. The only thing I think there is to note is that there is no air conditioning, and it is quite hot in July. Depending on when you visit this may or may not be an issue for you, but we were fine as we opened windows and used the supplied fan.