The apartment has immense character and old-world charm. A pleasure and a delight to stay there. The light, the quiet, the layout were all superb. It is rather overpriced but we don't regret the splurge since the location is great and the apartment has so much personality and architectural heritage.
The futon mattress is comfortable but the main-bedroom foam mattress probably needs to be changed as it has lost much of its firmness and support. Not a huge problem, but not great--especially for the premium price we paid ($800+ for 4 nights). Loved the experience (and the kids loved the 7 locks on the huge doors) and Cristiana and her colleagues made us feel welcomed and comfortable: she even called a taxi to take us to the airport. Highly recommended!