We had a lovely stay at Nuno's. Though we didn't get the chance to meet this time, he proactively checked in with us and was very responsive throughout our stay. The flat is in a very lively location and walking distance to many of the landmarks. It gets loud at night but it's fine if you have earplugs. The perk is that it is literally in the middle of all the action! The flat also have a lovely balcony that was great for morning coffees. Be aware that it's on the top floor and there isn't a lift. We counted, it's 88 steps haha not much for Lisbon but something to be aware of!