We had this place as our second home for a week in March 2013 and we enjoyed it.
It has a very good location, we felt safe at all times and also it's just a few minutes walk to Copacabana beach and not more than 10 minutes walk to Ipanema beach. Also the metro-stop is close-by, although unfortunately the closest one is closed for reconstruction this year but the next one is also just a 10 minutes away.
The apartment is spacious and has enough beds for at least 7-8 people. The wifi and internet was ok, the fans and the airconditioning worked well, when needed. The kitchen had enough utensils and also the washing mashine was very useful.
Only thing is that the bedrooms on the street side get quite noisy already early in the morning - a lot of traffic and also many people stopping at the bakery shop across the street. We took it as a normal big-city living, but it might bother people with light sleep.
We were checked-in by the owner Denise and she was very kind and very flexible with us :) Replied e-mails quickly and also we were very thankful to here for helping us with organising the airport pick-up and drop-off trasportation :)
Also the doorman was a very nice man :)
Thank you very much for the great accommodation for our vacation :) Will reccommend to others!