I stayed in the Old City Suite with a friend for 2 days (3 nights). Appartment is tiny but big enough for 2 people who spend most of the time outside. It was clean and despite lacking a kitchen, had all neccessary utensils, including a small fridge!
It's location is perfect! Walking distance to most of touristic places, right in the middle between Bario Alto and Alfama. Very quiet place, in a small street, far from any city noices, yet close to a small grocery shops and some bars (if u don't wanna go further). Prepare for a lot of walking up and down the stairs, what can be specially tiering when with big bags ;)
We received a very warm welcome and all the neccessary information about the apartment and it's surroundings. There were no issues during our stay, so not much of a communication with the owner. But I received all neccessary information befor our arrival, I didn't have to wait long for any reply and felt confident and comfortable regarding our trip.
A big THANK YOU and all the best!