We are very satisfied with our stay in the apartment. It is spacious with tons of space to store your clothes, suitcases etc. I would like to point out that the beds are very comfortable (not too soft). Climate conditions works well and you may enjoy ideal temperature when outside is 37 C. Apartment is in new building with two elevators surround by historical building. I can't imagine better location for place to stay in Lisbon.
There are some minor downsides to consider:
1. There is not very pleasant smell (like cats pee) in restroom. It might come from shower drain.
2. There is climate hole is upfront bed in master bedroom. You can't leave AC on when you are sleeping if you don't want to get sick.
3. You will have to check in LovelyStay office and only then go to your place. I am glad we had a car. Walking with suitcases almost 2 km could be tuff.
As a tip. There will be no coffee capsules. You should buy beforehand Nespresso capsules (or alternatives that works with it)