Me and my boyfriend have been in Agostinha's room in June.
Agostinha's house is really beautiful and well located for us (lovely residential zone) but our experience in her room wasn't the best.
We have been in Lisbon in a really hot week and we couldn't sleep during the night because the room was too much warm and the fan wasn't useful enough, this made us really stressed during our holiday.
Of course this isn't Agostinha's fault (like she also said to us) but I really think that she should do something about this room problem.
She is really organized in her house, she gives really good advise about the city. In the end removing the problem that we have had, I suggest her house.