Host: Ana is helpful and friendly, she is very responsive and easy to get ahold of. I was running late to meet her upon check-in and was unsure how to access the place, after calling her, she arrived within five minutes. I also had multiple issues with the door, however after getting practice with the finicky locks and pulling the door towards you when unlocking, I got used to it. Ana was extremely patient when I called her multiple times and even came out in person to help me, another time she called a neighbor to help me out with the lock.
Place: The apartment is small, but works well for a single traveler. The bed is comfortable, the shower pressure is nice, and the kitchen has a working portable stove, microwave, dishes, cookware, and a kettle. The bathroom is also small, but typically sized for European homes.
As a single female traveler, I would prefer not to be on the ground floor, but I made sure to keep the door and ground level window locked and had no issues. There are two other windows that I opened when I was there, but you do look into other people's homes over the courtyard and hear some road noise, not a problem for me.
Location: In the Alfama district, easy to walk to the metro (about 5 minutes), 25 minute walk to Praca Commercio and other central locations like Santa Justa Lift. Many nearby restaurants and market (pingo doce). There is frequent foot traffic around the building and it is hit and miss for noise. You can easily hear people coming and going through the building, alleyway, and courtyard, but nothing too bad.