Claudia is a very nice host. We were welcomed and given tips on where to eat. The place was a lot bigger than the previously thought. The kitchen had a lot of features. Wifi and a TV were a nice feature, too. We stayed at the place when the weather was a bit colder and it was raining outside. The apartment wasn't the warmest by itself, but there were two movable heaters that warmed up the rooms quite quickly.
The place is located within a historic street: Vila Berta. It's very central, but also very quiet. Two Miradouros can be reached within five minutes by foot. The city center is 10 to 15 minutes away. There is a lot of bakeries, cafés, restaurants, as well as a very good supermarket just around the corner.
I highly suggest this place if you are looking for a central but quiet and spacious place in Lisbon!