Hey, there, this is a nice apartment and we had a great stay here.
Gabriel came to meet us and give us the keys when we arrived, all worked well. For two people, I'd say the apartment is quite spacious. It was clean and all. There is wifi and maps of lisbon were there as well. The couch is nice but dangerously comfy so don't linger too long or you'll miss the nightlife ;-).
It is really central and everything in the old town is easy to reach and basically in walking distance. Metro also quite close. There's a small shop on the corner of the building for basic food, etc, a larger supermarket also not far. Nice restaurants, bars, pubs close by as well as shops for all kinds of stuff (souvenirs, etc).
As it is really in the heart of Bairro, the streets can be crowded and somewhat noisy at night, so if you need a super-quiet place this might not be the one for you ;-).