Nelson & Family appartment is great, spacious, modern, and there's a tourist guide book waiting for you, hand maded, that is just great !
The overall neighborhood (Bairro Alto) is also really cool, a central location to reach all touristic places, but also a lot of restaurants, bars, terraces, shopping...
But as a touristic area, it also attracts some people you wouldn't want to meet, and there's a lot of drug dealers around. They are not rude or agressive or whatever, and if you ignore them politely all is ok, but my wife and I felt that it wasn't really pleasant to see them everyday, also they are a bit noisy during the weekend. Better to bring some ear plugs :)
So all in all, a great place and we had really great time, but bad surprise to see dealers around.