I have been in Lisbon for quite some time, but this time I came over for just a week. The apartment is perfectly located and well-connected if you want to reach different parts of the city quickly.
During my stay, there were also long-term tenants - ensure that you respect their privacy, don't make a mess and generally keep a low profile.
Juliana was always super responsive and cared a lot. If you are looking for a place to sleep in a busy and well-connected part of Lisbon, this might be the perfect spot.