Rui's place is globally OK, in particular for a short stay.
The place is rather well located in the city centre. The neighbourhood is pleasant and feels safe, it's well connected although no directly above a metro station (but walking around is really pleasant).
Access is easy thanks to electronic door which allows late access without trouble ! That was great in our case as our plane landed with some significant delay.
Place is easy to find.
Situation is on 5th rather than a 4th floor and the steps are a bit steep/narrow in some parts of the stairs. It's OK for someone with reasonable mobility and not too much luggage. For others, you may consider another place.
Inside, the apartment is cosy, well equipped for 2, maximum 3 guests. It's bright, modern. Nothing really traditional or personal :overall it looks and feels like a page in an IKEA catalogue (where most of the equipment seems to come from)
Luckily there is a AC/heater which is good by cold weather and certainly also in summer as the appartement is right below the roof and so could get pretty warm. The unit was working well as far a heating was concerned.
The place is reasonably clean although not sparkling, despite a fairly hefty cleaning fee which bumps up the overall cost.
The bathroom is pleasant and well arranged, although it gets a bit messy after a shower as nothing protects it from the rest of the bathroom.
Small kitchenette is fine and in good condition.
Sleep : the bed is good.
To be noted, although this is not as noisy as Alfama for instance, there can be a bit of partying noise around the place until 1 or 2 am, at least it has been the case for us during the 2 nights of our weekend.