We stayed at Alicia's apartment for a weekend in April. Alicia was a great host, she even bought bread and fruit for our arrival. She was always available to answer any questions.
Alcia's apartment was clean and comfortable, although more suitable for 2 or 3 persons rather than for 4 (very little space left when futon is unfolded)
One drawback : the neighbors were really loud early in the morning, and the building is very noisy (bad sound proofing). this is why I rated our stay 3 stars instead of 5.
The situation is great, very easy access to the metro station and 10 minutes'walk to Gran Via.