The apartment is great - it looks exactly as it does in the pictures - and there's loads of room (there were 8 of us staying). The beds are very comfy and the sun terrace is a brilliant bonus. And we loved having the office right next door - Albertino and his team are extremely friendly and helpful.
One thing to bear in mind is that the area is pretty run down, and there are no bars, restaurants or shops unless you walk about 15 minutes (although there is a supermarket nearby). We didn't feel unsafe but you're not in the heart of the trendy bar scene - using the Metro (which is only about a one minute walk away) or getting taxis is a must in the evenings.