Very smooth and nice stay.
Comfortable unit and room. (Don't know if I'd personally want to stay in the room long-term since, as is plainly stated in the listing, it's an interior room with no outdsie facing windows. ) Nice kitchen for food prep, and indoor temperature stayed relatively comfortable through a small heatwave.
Location is GREAT for tourists- VERY close to the river and its paths, museums and historical sites all-around, and lots of eating options, both restaurants and markets. And, close enough for walkers (~4 miles/ 7 km walk along the river) to make it to the Alfama area, with public transportation also a very viable option.
Response time for and communication with Ana was great, even when I asked some pretty random non-travel related questions.