Mário is a really great host, giving you a lot of tips and recommendations for your visit in Lisbon, and is staying with you in contact in case you need something.
The place is very comfortable and provides everything you need during your stay (lots of cooking devices, hair dryer, wash machine, coffee machine, etc.). There was even a bottle of wine to welcome you as a guest!
As I stayed there during february it was a bit cold (but I have to admit, that I'm very sensitive to cold), but there is a heater you can carry with you through the apartment ;)
The flat is very well located, only 2 to 3 minutes walk to the metro, which brings you very easy and quick to the city centre. There is also a supermarket nearby.
I can really recommend this place.
Thanks Mário for your efforts!