My room at the Palacio was really nice. Very modern and clean.
The guesthouse itself is everything you need. Seceral kitchens. Enough showers and common areas to hang out and socialise.
I had the room by the entrance. Close to the door and street. I didnt hear people coming in or out and the street is very quiet too. Also you are in barrio alto in 10 min walking!
I got so much value for what I paid and would recommend it to everyone staying in Lisbon.