We stayed a Raquel's apartment for two weeks and it was a perfect place to base ourselves for our stay in Lisbon. The apartment has everything we needed to cook our own meals when we wanted and also has a great washing machine and dishwasher. We were there in late summer so the A/C was a big help. Be aware the apartment is up 4 sets of stairs and the street is very noisy but that's all made clear in the description, we didn't mind at all.
The only issue we had was that there's construction project going on in the small interior courtyard that the bathroom window looks out onto. There's scaffolding up to the 4th floor and most days during the second week there were workers drilling and hammering very loudly right outside the window. Even with all the windows and doors closed it was quite disruptive. Raquel said she didn't know about it and that she was looking into it but we'd left before she got back to us. I wouldn't recommend staying here if you plan to work or stay home during the day until the construction is finished.
Thanks for a great stay!