Loved, loved loved the place! Deisi was a great host and was very accommodating. (Gracias, Deisi)
Greats: Location (the street with the park up the middle is amazing), Metro stop very near, tons of restaurants (la Pepita may be my favorite place on Earth), loads of space, balconies, a/c, lift, and just generally beautiful!
The only thing that wasn't great was one night was extremely noisy in the building. I don't know what was going on, but it was loud all night. I'm not subtracting anything for this, though, because it had nothing to do with the host or the apartment itself.