since i'm the first to rate this appartment i'll go a little into detail.
we were absolutely satisfied but it may not be a place for everybody.
ana's place does not only have an overwhelming view, even the way up there with a little train (free of charge) is quite unique. the atmosphere of the place is amazing and we fell immediately in love with her little cat. the terrace and also the views from the living room are priceless. However, if you're looking for a sterile hotel room you might search elsewhere.
about security, ana's appartment and some more houses are secured with a gate and 24/7 security and train service. you can literally leave everything open and noone will touch it.
what we liked particularly is the fact that this place really feels like home because ana lives there, when there are no guests.
i would stay there any time again.
and communication for non-portuguese-speakers is easy, ana speaks english