I highly recommend staying in Second House! We had a lovely time..the balcony is especially charming and great for sitting having a few drinks before/after you go out for dinner. The flat is located in a quiet residential area and about 30-40 minute walk into the city centre, or 5-10 mins in Uber (€4) ... we landed up getting quite a lot of Uber’s as Lisbon is so hilly and it was so hot! (But they are cheap so we didn’t mind) Make sure you bring your walking shoes with you. Lisbon is becoming more accustomed to vegans and we went to some great places..I highly recommend Ao Vegan Project, The Food Temple, Jardim De Sentinos for dinner (make sure you book!) and Zenith is great for brunch & cocktails (not vegan but has some great options). You will have a great time...I’ll miss chilling on the balcony as the sun goes down!