The stay at Ana's flat was very nice for me. The room is not so big, but it has a good kitchen, a shower and a toilet, thus a convenient and cosy place.
The location is ideal, just in the city center, easy access to Rossio square.
It is located in 4-th floor and stair is narrow, so on the cases of check-in and check-out, it was a bit inconvenient with going up or down with big luggages. But in usual time it was a good exercise.
you can use shower only 5 minutes for one time, but practically it is not a problem.
There are a very good local restaurant just near by, on the same street. It does not have even signboard, but it is full of local people, foods are good and cheap, and people there are very efficient and friendly.
Finally, Ana was an excellent landlady. Actually, I had questions about checking in and about the heater, and in both cases her replies were immidiate and very helpful.
I recommend this flat to all the people who stay in Lisbon for a short period.