Super location! Every major attraction are within a 10 to 20 minutes walk. The metro is a 4 minutes walk.
Aysha gives great specific directions, it was very facilitating to come to the appartment. They also give you a bottle of wine and water wich is a cute touch.
The cons is that it can be very humid in the appartement when the weather is like this outside and because this is a "old" and typic building from Lisboa, it is not sound proof!
Great quality/price for the place, you will enjoy it!