We stayed for 11 nights at Danes's place on late December and I can say this apartment will be the first choice when I'm back to Rio.
Not everyone has the same preference regarding the location, but I'd say it was perfect for us: quiet and nice neighborhood, 300~400 mts to the supermarket, 500 mts to Barra da Tijuca downtown, 500~600 mts to the beach.
We're a young couple and the apartment was comfortable enough. I think it should be fine for 4 people too.
The kitchen is well equipped with a very good fridge, toaster, electric kettle. There's also a washing machine that is very useful.
We also loved the balcony. You may have a breakfast there and have a look of those amazing trees you can see in Rio.
Danes was very kind and always ready to help us.
I hope to get back to Rio soon!