We spent a long weekend at Nuno's and really enjoyed it.
The location of the apartment is very central, just a few minutes walk from the main square and many attractions.
The place is very clean and well equipped with everything you may need; superb comfortable bed; Internet connection was good too. As mentioned in previous reviews, there are no actual windows but it wasn't a big issue for us.
At the check out Teresa, the key holder, let us stay until later in the afternoon (there was no one booked in for that night) which was absolutely amazing. Thank you.
We highly recommend this place for a nice city break and Nuno as a host.