Going to Tania's appartment is a really good experience.
First of all, the appartment is charming! Really nice view (amazing view I should say) over Rio.
Secondly, the appartment is cute, well decorated, functional. Everything you are looking for is there.
Lastly, and it's the main reason you should go there, TANIA! She is a incredibly helpful person, giving you tips and advice. She is really clean and friendly. She will try to help you as much as she can (Speaks portuguese, but nowadays everyone knows how to use Google Translate :D).
We really like staying at Tania's place. It would be my first choici if I come back to Rio.