Wolfgang's place is definitely worth the stay! Spent 1 week at the apartment and loved it. There was 3 of us and it was more than enough room to not feel crowded.
The rooftop terrace is great!! Nice breeze off the water, and yet protected enough to get lots of sun. Plus the views are perfect.
The doormen were extremely helpful with the neighborhood and getting us reliable guides/taxis.
You can't beat the location, being between Copa and Ipanema.
I would definitely stay here again on my next trip to Rio.