I really loved staying at Palácio de Sant'Anna, so much that I decided to spend one more week over there... The view from the room 29 was amazing! I would suggest to wait for the sunrise once, is something that who is staying in that room must do.
The room and the facilities and clean and functional, either if you are on vacation or you are planning to stay over there on a long term basis.
Wifi is all over the house.
The people are very friendly and the staff as well. You would feel at home and make many new friends from all over the world.
From the Palace you can reach the heart of the city on foot, else you have many bus lines near by. And if you are lazy and you want to take a taxi, it won't cost you more that 6€ to go downhill.
There is a supermarket at 5 minutes walking distance for your needs and few small shops and a bar just next to the Palace.
I would definitely suggest this place!!!