We've loved our stay at Isabel flat!! The communication was very quick and easy, we haven't had any problem with the time to arrive and the time lo leave. The apartment it's around 10-15 minutes from the center of Lisbon. The neighborhood is quite, and, although you could hear the neighbours during the day as it usually happens,at night is all peace and quiet!
There are some bars and restaurant around if you don't want to walk to the center and there is a supermarket at the end of the street.
The flat was clean and had all the services needed, there is an electric heater which is more than enough to keep the room warm!! Recommended to stay in Lisbon!