I really enjoyed my stay at the Palácio de Sant'Anna and I would highly recommend staying here for anyone who is in Lisbon for more than a few days and traveling alone. Most people in the house are exchange students or people doing freelance work. I found the house to be very quiet and calm. Actually there was little interaction with the other tenants, everybody mostly doing their own thing and being very respectful. I liked this, since I was looking for a quiet work environment. It may of course be different at other times, depending on the people staying in the house.

Room 13 is great, it's well-equipped, quite spacious, and has a beautiful view and sunshine in the mornings. It is close to the common areas but there was rarely any noise (the same goes for room 12 and 14). In fact, the common areas seemed to be barely used by the tenants, at least during the weeks I stayed there. The common kitchens were also much less used than I expected - whenever I wanted to cook something I could do it and never had to wait because the kitchen would be occupied. Same with the showers and bathrooms. All common areas and facilities were cleaned each day. On the weekends the kitchens were often a bit messy and dirty, but again, that surely depends on who is staying in the house. There is a washing machine you can use for free, which is great. Wifi works ok in this room (not a super strong signal, but enough for browsing and watching videos). Everybody gets their own shelf in the fridge and two other shelves near the kitchen, so you don't need to worry about where to store your food or about confusion what belongs to whom.

The reception staff and the person responsible for housekeeping/caretaking were really friendly and always helpful. I also liked the location of the Palácio, as it is close to the center and many sights and spots of interest are in walking distance. It is located on a hill and a bit of a steep walk when you come back home, but that is not unusual in Lisbon. And you really get used to the walk uphill after a week or so. If you arrive with luggage you should really take a taxi though...

I had a guest staying with me for a few nights and the staff put an extra bed in the room which was really comfortable and didn't feel crammed. However, you need to pay 15€ extra per night if you have a guest. So, if you plan on having visitors regularly you may be cheaper off by choosing a room for 2 right from the start.

Overall, I really liked staying at the Palácio and I extended my stay after the first month. I would definitely stay here again :)