We began our Lisbon stay with Moisés, who is a really nice guy. He gave us good tips about the city.
The apartment is in a very good location, near to Martim Moniz Metro station, and in a walkable distance to the centre.
The guesthouse itself was furnished with good sense for design, but also practical. There are two showers, which wasn't 100% clean. However, the kitchen was well equipped and very clean. The room itself was very cozy, but a bit bad soundproofed, which wasn't a problem, because all other travellers were very polite.
All in all we would recommend you a stay at Moisés guesthouse, because he is really friendly and the apartment is well equipped and good located.