Stayed here for 2 weeks with my husband and loved the place :) The apartment is located in a district that is not touristy at all (thank God!) and is close to the metro (few mins walking distance) that takes you directly to the city center. (If you have no problem walking, the city center is located ~20mins on foot anyway. We found both options very convenient.) Also, local restaurants, cafés, pharmacy and supermarkets are close by should you need anything.
The Lavender House is well equipped and clean, absolutely suited for longer visits as well. The hosts Ana and Lourenço are very kind and helpful, always available if we had any questions or needed help. We had a lovely time here and would absolutely recommend the Lavender House to anyone! :)