Ricardo, Pedro and Alexandra are nice and the location of the apartment is really cool closed to everything. The neighborhood is really great and its just next door to the electric 28 which can bring you to all of the touristic places.
If you want to party its also close (like 5-10min walking) to the bairro alto where you can find lots of bars but the neighborhood around the apartment stays calm.
It's just a little noisy depending who's upstairs...