I stayed in Renata's apartment for 2 nights with my partner. We found Renata very kind and available and the flat very clean and welcoming. It is a very nice and peaceful place, located fairly close to the metro and to the beautiful Gulbenkian Centre of Modern Art which is surrounded by amazing gardens.
We really enjoyed our stay and we highly recommend to anybody who wants to have a sweet and quiet time in Lisbon, but still wants to reach the centre of the city with a few metro stops.