We spent about a week in Lisboa and had a good time.
The accommodation is close to the LX Factory, which is a nice place to eat and go out in the evening. Both the city centre and Belem are within easy reach (tram/taxi). Even carcavelos (nice beach) isn't that far away (train).
Nuno was a great host. We always got quick answers if we had questions . Nuno loves talking to people and makes you feel comfortable easyly.
We even took the day trip with him to Sintra, which was plenty of fun.