We liaised with Maria's son Antonio throughout our stay in Lisbon and he was a superb host. Check in was super easy as only a key code was needed, meaning late check in was no bother. The apartment is beautiful with all the facilities you need for a long or short stay in Lisbon. There are great restaurants and bars literally 30 seconds from the front door (Cerveteca Lisboa, Bar foxtrot and Cantinha Lusitano being particular highlights) and the centre of Lisbon is only a 20 minute walk away, with the metro system also just 10 minutes away. I couldn't recommend Maria and Antonio's apartment enough and hope to be back some day!
Obrigado Maria and Antonio!