My sister and I had a great stay in Hai Nguyen's beautiful and very modern apartment. The views were simply amazing and location couldn't be better. It is conveniently located a short walk away from the Terreiro do Paço metro so arriving/departing from the airport or Oriente station was easy as that station has escalators to the street level. Check-in and departure were seamless and we loved that there was an elevator in the building to the 5/F although there is an internal staircase in the apartment to the upper floor where the two bedrooms are.
We found the apartment very clean and spacious. Three bathrooms... what a find!
Highly recommended!