Joana’s place is extremely comfortable and centrally located. The Bairro Alto, the Chiado, and the Principe Real neighborhoods are all at a close distance. It is also next door to “Park”, one of the hippest rooftop bars in Lisbon (on the top floor of a public parking). Joana is a very proactive and responsive host.
You should note that the apartment is on the ground floor in case this is an important factor to you. There is also a fee to use the second bedroom if you have booked for 1-2 hosts to help cover the cleaning fees, which is indicated in the description, but which I had missed.