Good place to stay. In the center of Lisbon, typical appartement and neighborhood.
+ good location
+ proximity public transport
+ check-in arrangement
+ host friendly and available
+ good quality/price.
- no window in bedroom or kitchen.
- too small bathroom (inconfortable if you are big and taller than 1m80).
- bad isolation (hear everything outside and upstair). At night, it's became insupportable because of discuss between people who walked outside, or noise of upstair neighbors in the morning.
I would recommend this appartement to solo/couple travelers or friends, but a family, you shouldn't.