The apartment is very cozy and comfortable. It has everything you can need for a short stay. It is ideal for 2 to 4 people, although it can fit up to 6.
It is located in the middle of a trendy area, so plenty of great restaurants and bars.
Apartment is very hot but it has 2 AC machines. It a second floor without elevator, but being in Lisbon it is not a handicap ;-)
Finally, it is mostly a pedrestrian area so getting there by car is not easy and difficult to park. There is a 7 floor parking nearby where you can park 24x7 for a small fee.
Highly recommended.