Lovely place to stay and it was big enough for me.
Location was perfect - walkable distance to all attractions, such as the Castle San Jorge (10 mins walk), museums and great viewpoints. It took me about 10-15 mins to walk to the Praça do Comerico The location is has great transport links- 9 mins walk to the Train and Metro Station.
It can be a bit noisy on a night due to the local restaurants, shops and neighbours below but it was fine for me.
Highly recommended!