it was such a pleasure staying at Nuno's apartment.
For the location I would give 8.5 - it takes 3-4 minutes until you leave the winding and grey streets where the apartment is located (mouraria) until you reach a central place. No big deal. The place itself is at the 2nd floor (no lift), spacey, had 2 separate bedrooms, with all devices needed at the kitchen. Wooden floor (so some cracking from upper floor) but I didn't mind that. I slept so well there. Plus, Nuno was super quick with replies and of course the check-in/check out were really easy.