I stayed with a colleague, we were on a study trip with 14 students from Berlin who were housed in a different apartment. The place was very clean, everything worked well, the shower was great, so was the balcony in the upstairs room. The neighborhood is probably my favorite one in Lisbon, the house was in a very quiet street, and when there was noise outside two nights because of the Festas de Lisboa, the windows isolated shut the noise out perfectly. Sandra was very helpful and nice. Highly recommended.