Nice place in Alfama district. There were nice restaurants and coffee shops nearby, the view to the castle and the nearby church was amazing (hope it will be preserved after the building next door is finished). Speaking of the construction it was not really nice that we were woke everyday by the sound of hammering and drilling, but probably it's temporary.
The flat has inverter air conditioning unit which is double handy since you can turn it on when you are cold of you travel in the cold seasons (having heating in Portugal is not the norm).