Great place to explore Lisbon! We really enjoyed the visit. Walking distance to good restaurants and lots of sites. Be warned it's hilly!
The apartment is spacious and comfortable. Easily slept a family of 4. We prefer to sleep with windows open sans AC, but was a bit noisy on the street. Once we shut windows it was nice and quiet, but did have to run AC.
Overall, we highly recommend and would definitely stay again!