My friend Anna and I booked an apartment at Marta's House. Unfortunately I was not able to fly with her because of a spontanous job interview. Happily, another friend of Anna was able to take my place and both spend a wonderful time at Marta's. Here their experience:
Our stay at Marta's house was awesome. We had everything, were able to cook food and we were welcomed by a bottle of wine which was pretty nice :-). Marta helped us a lot with metro and bus conditions and was always available by phone. Our time at Lissabon was a great pleisure due to Marta's caring about us. I would definitly recommend her house which is not far away from a metro station. (Anna & Gitta)