If I can recommend one place in Lisbon to stay, it's there!
The appartement is perfected placed in the city, just near to all you need and all the good places to visit !
You just have to take a bus at 5 min by walk to go straight to Belem for example !
You've got good restaurant nearby: If you like wine, you must go to Chafariz do vinho, 2min by walk,
The flat is very nice, with everything you need! And Joaquim was very kind with us ! He was waiting for us at the metro station with en umbrella. Unfortunately we can't enjoy the terrace because of the weather, but we went up during the morning and the night: it was beautiful!
If I come back to Lisbonne, I'll definitely go back there!
Cheers !
Virgile
P.S. Joaquim speak a very good French !