This apartment is in a great building and in a perfect location! Funny enough, my wife and I actually rented another Airbnb unit on the same floor in this same building and this apartment is a bit cheaper with only one small downside: If you are a light sleeper, there is a persistent knocking sound in the bedroom which must come from the elevator banks (as this unit is directly next door to the elevator). My wife is a sound sleeper and the knocking sound DID NOT bother her at all. I am a light sleeper and it woke me up from time to time so I eventually put in earplugs. It's not a dealbreaker at all, but it's worth knowing if you struggle with sleep.
Otherwise, we'd highly recommend this Airbnb. The living area is spacious enough, the bedroom is very comfortable, the wifi is very fast, and you're within walking distance of so many great things in Lisbon. The check-in process requires that you call someone and they remotely unlock the door, which is not a big deal, just worth noting. The host company is very responsive and very helpful.
If you're looking for a simple apartment, priced well, that's newly renovated, and in a great part of Lisbon, go ahead and book this place!