The apartment looked as described and was very clean. The location is good for exploring the city. If you stay for a couple of days, I recommend trying out Casa Mocambo, a nearby restaurant offering meals inspired by the kitchen of former Portugese colonies in Africa.
If you come by car, be very careful about what Google Maps suggests: streets are very steep and narrow and sometimes too narrow if there is oncoming traffic.
Francesco asked us to send him complete passport copies via e-mail which is not necessary and even not recommended. People should never send digital copies of their passports to other people because of privacy concerns. However, AirBnB guests in Portugal may have to give their hosts some information due to Portugese law, those include name, date of birth, passport ID. When we informed Francesco about this, it was OK.
Besides, communication with Francesco was a little odd. He seemed kind of annoyed when we organized the times of check-in and check-out. He repeatedly asked us to contact a woman named Paula for that manner, but Paula never replied. Anyway, everything worked out eventually.
As space is limited in Lissabon, the apartment is quite small. It has only two windows: one usually-sized window in the couch area and one very tiny window in the bedroom. In difference to the other AirBnB-apartments we visited, there was no TV. The kitchen was equipped as described and perfect for cooking some meals.
Although there were some points of concern, I would consider choosing this aparment again.