Ana's apartment is great: three bedrooms, two bathrooms, all amenities, and also an excellent location (supermarkets, lots of restaurants and a metro stop within walking distance and opposite the Russian embassy, with 24/7 surveillance on the street). We were warmly welcomed by Rita, who showed us around and gave us each a key (we were a group of four). Rita was very easy to get in touch with during our stay and responded instantly. This is a very good value for your money.
However, we did find cockroaches in the kitchen area of our apartment. Rita came to the apartment with a company to exterminate them, but to no avail, as we found even bigger ones afterwards. A friend of mine even found a cockroach in his toiletry bag upon his return back home. While we have no doubt that cleanliness is ensured as much as possible and Rita and Ana have done everything they could on such short notice, we found this to be a big drawback in our overall stay.