We had a great time staying in Stephanie's beautifully stylist apartment. The location is absolutely unbeatable, you are so close to everything! The start of the tram 28 route is two minutes' walk as is Rossio station for day trips from Lisbon. If you want to visit the castle (which is highly recommended as the views are simply stunning) then the castle elevator is just down the road and makes light work of the uphill climb.
If you are planning a visit to Lisbon then staying at Stephanie's apartment is highly recommended!