It was perfect for our 3 night stay in the neighborhood of Alfama. Make sure to bring your own shampoo/soap as it’s not available in the unit.
If you’re visiting in the summer, be prepared for the heat since there is no A/C but the fan still helped us sleep well.
The public tram right outside is quite convenient to get to know the rest of Lisbon. Love the nearby coffee shops. Overall, great stay!