Claudia's apartment is very big, but not very cozy, at least in winter. There was only one heater for the entire house, so we had to keep moving it around between the bedroom, the living room, and the kitchen to keep the house warm.
Besides that the apartment was nice, the location it's very convenient, close to Sete Rios bus station and the airport. Supermarkets and restaurants are close by. There is a bus stop very close (the city is very big, so even though the apartment is centric, you probably will need to take a bus or 2 to go where you want to and get back, or walk a few miles).
We had a problem with the shower gel when we got there, but Claudia solved it by the next night, she answers very fast.
Overall nice place to stay in Lisbon, probably better in warmer seasons : )