The flat is super clean, very big and well furnished, with a very comfortable double bed and some sofas that can be turned into beds if needed. It's just 5 minutes walk from the Trindade station and a shopping center.
In the flat there's a very fast WiFi and two cable TVs. The kitchen has everything you need, including a Dolce Gusto coffee machine (I just had to buy some capsules in the shop nearby and could start enjoying a good coffee in the morning).
The only downside that I can think of is that the flat is along a busy road. It wasn't a problem for me, as the windows are also isolating lot of the noise, but I know that it can be a bit noisy for people not used to city life.