We loved our stay in Lisbon at Flavia's place. The location is AWESOME, we walked everywhere. Lots of great restaurants and bars just minutes from the home. It is a studio apartment and it felt very cosy. Flavia was also great as our flight was in at 8 am, and although the check in was meant to be 12pm, she let the cleaner know to expect us early to drop off our bags.
Only con would be maybe the noise, the apartment is on the ground level and you are very close to the street, so you can definitely hear vehicles/people talking as they walk by. That being said, the street itself isnt a busy one so it was ok. We would definitely recommend her spot!