Some very useful things which made my stay very convenient:
1. Ask for more than 1 pair of keys. We got 3 and it's super useful. Normal host only give you 1
2. There is speaker in the balcony for playing music. And nobody complained that we played it loud.
3. U can use the washing machine
4. You can bring quests
5. Communication is very fast.
6. I was able to do the check-in 8AM!
7. There is bars and cafes in the same building. Gringo Cafe offers breakfast all day. So i can wake up 1pm and get my eggs and bacon.
8. Safe are, beach very near.
I would use the same apartment for my next trip to Rio.