I could not imagine a better place to stay in Lisbon.
Alfama is the perfect neighborhood for really experiencing the culture of Portugal while also being close to everything that a tourist would want to see.
The AirBNB is close to the river, on a vibrant little street with great restaurants and easy access to the train and metro, and walking distance from many of the highlights of Lisbon.
The apartment itself was clean and easy enough to find and has everything you need - full kitchen, washer, a/c, etc. it was such a comfortable place to be and there were lots of thoughtful touches. Spent a week here but could have spent a month and still loved it.
Carolina was also very easy to communicate with and had excellent recommendations for the area!