I recently stayed at Angelo's apartment and it was fantastic. The apartment was just as described and looked just like the pictures. It was modern, clean and the furniture was very nice. The building was very secure, which made me feel safe. The kitchen was fully stocked and had everything I needed to cook my meals.
Angelo was a great host, he was very nice and quick to respond to any questions I had. When I arrived, he made sure I was safe and settled in before leaving.
The only downside was the location, as I personally didn't like Copacabana. The neighborhood was somewhat dirty and had a lot of homeless people. As a digital nomad, I had a hard time finding quiet cafes and restaurants with good wifi. However, there are other neighborhoods like Leblon and Ipanema that seemed a bit better. Of course, this is just my opinion and you should research the area before booking. Overall, I highly recommend Angelo's apartment.