The apartment is very clean and in a lovely location. It's in the old part of town so it's surrounded by little cobbled streets and hills. If you turn right at the front gate and go up the steps, you find a beautiful view point. There is a bar above it where you can sit and enjoy the view. There is also a lovely little local place across the square called O Botequim that serves food and drinks till 1am.
We walked to the centre but Ubers in Lisbon are very cheap so we also used them quite a lot !
Miguel & Inês were very relaxed hosts with good communication and good check in / out times.