We had a great stay in Lisbon and Paulo's apartment. It is situated in a great location with lots of bars, restaurants with everything on walking distance.
The keyless entry-system is awesome, you can't forget keys and this makes checking in and out seamless. The apartment itself is space-efficient and provides everything one needs. We loved the numerous un-tourism tips Paulo provided and enjoyed ourselves greatly in Lisbon. The small bar around the cornerof the apartment is really cool, the owner is so enthusiastic and every night there is some live performance, so just go there once as well.