Great location, spacious, clean and great quality finishes within this place. These are the things that really make this place a fantastic experience during your stay in Lisbon. Views right outside the balcony are picture perfect and you can spend hours just getting lost watching life happen. You are right in the middle of the culture.
The management company is great, good communication, responsive and friendly.
One minor thing to know, you have to pick up keys at "welcome center" which is about 15 min walk away from this location. Traveling in with luggage, this could be a nuance.
Otherwise, quality of the place and location location location is what really perfect about this place.