Just like it says in the name, quiet and cosy apartment. Not far from the airport and very near all public transport (Train bus and metro). The apartment lies in a residential area, which means there are a few coffee houses, a supermarket and just down the road a little snackbar/bar called Tasquinha Da Linha, excellent service and the food wasn't too bad either (for a snackbar).
The residential area was very quiet indeed, no beeping cars or sirens, just a few trains now and again.