I did not get to meet Ana Cristina, but we spoke a lot and she seems like a sweetheart, I would love to meet her one day for a coffee!
Simone and her husband James were great, and they took care of me -- Check in was seamless, and any other questions I had were answered immediately. The apartment is in a great location, with two Miradouros nearby, and plenty of restaurants / shops / padarias / pastelarias / cafes, etc... Although I would strongly advise that you bring a set of ear plugs, because the construction is old and you can definitely hear the neighbors (upstairs and next door) The next door neighbors were also quite loud until very late at night (a few nights), and there was one night where they got into an argument until 3am.
Another thing I found odd was that the shower has no place to hold soap, so when you are taking a shower you have to physically hold the soap bar in your hand. It was a little annoying when I wanted to shampoo my hair, because I would then just put the soap on the floor (this is so weird to me). Also, I didn't experience this in any of the other Portuguese bathrooms that I stayed at (in Cascais and Porto), and I even thought about purchasing a soap stand, but I didn't have time during my stay.
I will point out that there was also a weird smell in the bedroom and some black mold on the floor near the window -- again, probably owing to the old construction, so I made sure to keep the windows wide open all day long to try and get the smell out.
I will say this -- the majority of the negativity I experienced (above) is not in any way Ana Cristina's fault -- more to the old construction and the loud inconsiderate neighbors (uncapable of following the host's and Lisbon's rules around sound ordinance). I was very pleased when speaking with Ana Cristina, and Simone was awesome!
Muito obrigado, Ana Cristina e Simone!