Sergio's apartment was absolutely great choice for us.
We were very satisfied . The apartment was super clean and comfortable .We were able to check in late at night thanks to Alice who lives next door .
The apartment is in old building ( probably it is more than 100 years ? ) but equipped with everything what you can need during your staying . It is placed in old part of the city of Lisbon which is called Mouraria it is also very close to famous Alfama -( which is invaded by tourist a bit too much for me )
This is the place where I believe you can find and feel multicultural Lisbon . As far as safety is concerned all the time we felt very safety and we didn't have any bad experience with people living there around . The apartment is very close to metro station Martim Moniz not more than 4 minutes walking distance .There is famous tram 28 stop around and buses as well .So you can easily get to any destination you want . We can definitely recommend Sergio apartment to stay in Lisbon .