I was very pleased with my stay at Pensão Rosinha. It is very spacious and clean. The kitchen is stocked with bread, cereal, milk and coffee and it provided a nice space in the morning to set out what I wanted to do with my day. The bed was comfy and I never had any disturbance from other rooms/neighbours.
The location is good (although it took me a long time to get anywhere in Lisbon due to my inability to navigate the maze of winding, narrow streets!)
Perhaps the best part about staying at Pensão Rosinha however was having such friendly and helpful hosts in Paulo and Camila. They made me feel very welcome and gave good tips on what to do in the area. I'd highly recommend joining them for dinner if you can - I had a great evening and Paulo's Francesinha was excellent.