Fabíola and António's apartment was perfect for our week-long trip to Portgual. The check-in process was smooth and the location was excellent. It's located right in the heart of where all the action is. There's a beautiful view of old Lisbon just around the corner, as well as access to numerous restaurants, small supermarkets, corner stores, and more. One thing to note is that it is an area that gets rather touristy and was rather lively at night. Not a huge issue noise-wise if you have a pair of earplugs. Also, if you are taking the metro from the airport and walking to the Airbnb, be prepared to tackle some hills. It's a short walk from the metro stop, but the uphill is killer if you are carrying luggage.
Would recommend this place and would love to return again!