We had a very nice stay at Ines' apartment. The place is cozy and beautiful and very well located. You can certainly live the real Bairro Alto experience and yet be very calm. Despite all the action happenning at nights down the street, 2 of the 3 rooms are very quiet and the third one is still OK thanks to the double windows. You just should know that the apartment is in a 4 floor with no elevator, so carrying up and down the luggage can be a bit tough.
Last, some words to Inés, who was very nice and responsive all the time, helping us to have the best experience in Lisbon.