Because I was visiting Lisbon on my own, I was looking for a comfortable and home-y apartment to stay at (in case I wanted to spend some hours at 'home' as well). This apartment was just that. It was clean, cozy and perfectly sized for a short or long-stay holiday, as it is much bigger than a regular hotel room! In addition, Rita was a great host. She checked in with me regularly and quickly responded to my messages.
As others have said, do keep in mind that the apartment is located in the narrow streets of Alfama, only reachable by foot and stairs. Also, the apartment can get quite noisy (my upstairs neighbours liked to walk around a lot at night and sounds from the street below travels into the apartment). But that's to be expected in a larger city.
In short, I absolutely recommend this apartment and Rita as a host!