The place is good for the party of three or four guests and is close to the public transportation and walking distance to Belem's museums and Jeronimo. 40-50 minutes walkingto major attractions of Belem and 30 min tram ride to Lisbon center.
I would recommend not to rent a car, as parking can be a real challenge.
The place is clean and nice.
There's a surprisingly good Indian restaurant
100 meters away, try their pizzas and curry
Pavel.