Elena's place was good for the budget traveler. The location was incredible and extremely close to Gran Via and any major metro or bus lines, as well as major attractions that are centrally located. The apartment doesn't have a fan or AC and while it stays relatively cool, it's hard do combat natural heat on a very hot day. You can leave the windows open, but note that the outdoor courtyard was very VERY loud and there was a woman who was coughing across the courtyard who you can hear very well and it was disruptive at times. Location is great and its a relatively clean space, but the noise and heat are things to compromise.
Otherwise, the hosts were great and primarily speak Spanish so prepare for conversations accordingly!