Carlota and Frederico went out of their way to help us get to the apartment when we were stuck during the Saint Antonio mayhem - they are extremely lovely and very responsive hosts. The apartment is located in a popular and vibrant area indeed - it can get loud (music/ people) at night... we slept with earplugs we happened to bring.
Easy to get around, great views..
our only let down is the photos of the apartment might be a bit outdated... so manage your expectations :)