Charles & Amelia's appartment is absolutely gorgeous and decorated with great artsy taste, that's why I chose it in the first place. It hadn't seen any other appartment like this one among Lisbon Airbnbs. It's amazingly well-located : the street is really small, cute and quiet, and yet close to the very center (and animated) center of the town. Moreover it is in the "flat" part of town which is quite enjoyable when you'll be spending your whole day going from one Lisbon's hill to another.
As freelancers we needed to work a bit during the day, so wifi & cosy appartment were really important for us ! We could also cook some of our meals at home, even if the very good and cheap restaurants nearby were quite tempting.
The appartment is very clean and very new, makes it easy to feel at home. The only inconvenience was the bad sound insulation : we could hear very well the people in the street, in the staircase and above us as if they were in the appartment with us. Fortunately, the building and the street are really quiet but you'd better sleep with earplugs if you don't want to be woken up. But I guess this may be the problem with a lot of old portuguese buildings.
Charles, who always answered every message very quickly, let us leave the appartment a bit later than expected as it was not rented on that day (thank you Charles !). It was more complicated for our late arrival (11h30pm at the appartment) as we had to pay 30 € to the person who came to welcome us. It is no big deal and we were glad that a solution was provided, nevertheless it's better to know it first.
All that being said, this appartment will definitely be our first choice if we come back to Lisbon.