I stayed for 3 nights in Walter's apartment and it definitely belongs in my top 3 airbnb experiences out of all the places I've stayed. The studio is clean, simple, and utterly charming. The terrace is what really makes the place, its full of colourful plants and it is lovely to wake up in bed and look out the window at the Lisbon rooftops and sky! I really think it is impossible to do this place justice in describing it...you really have to book and then see for yourself why staying here is so great! I honestly wish I could move in full time :) My dream lisbon home.
Also, Walter himself is a lovely host; he was very communicative and helpful upon my arrival and although I didn't see him during the rest of my stay, I know that if I had needed anything he would be there to help. 10/10 would recommend.