Loved staying here for as long as we did. it was the perfect location: 3 minute walk to Copacabana, ~15 minute walk to Ipanema. Centrally located to everything in Rio. The apartment is near a favela but it's fine - generally safe as long as you're not stupid. There's a doorman at the outside gate 24/7. I would definitely stay here will family/friends members young and old. Supermarkets, restaurants, banks, everything is very close by.
The apartment is very spacious. 2 bedrooms with bigger beds, 1 room with a bunk bed with Queen size beds, and a 4th bedroom with tiny twin bunkbeds. We stayed in one of the big bedrooms and used the other rooms for closets. The bathrooms are great - small shower but very normal for Brazil and Europe. Bidets. The jacuzzi was a treat. TV works - bring an Amazon FireStick or something, though you can log into Netflix.
WiFi worked great - worked there everyday without issues!
We were greeted at the door upon arrival and given the keys. Seamless process and super helpful. Highly recommended stay!!