Domingas is a great host, very kind and responsive to any questions or concerns we had, and the apartment was perfectly pleasant, just as described.
Our only note is that the two bus lines that run past the building, while great for easy transport, turned out to be louder than we expected. This isn't a problem for sleeping at all as the bedrooms aren't at the front of the flat so the road noise cannot be heard while in bed but the traffic can be heard clearly in the living room fairly regularly during the day.
If you are coming for a short stay and plan to be out touring the city for much of the time then you shouldn't let the busses put you off this place, as I say they are very convenient for transport and we used them all the time, but we were in the apartment for a month and spent many days inside working so the noise became tiring after a while only because we were there more than the average visiting tourist.
Also, keep in mind that the busses zig zag all throughout the city, including some streets so small you think they wouldn't be able to fit, so it may be just as likely than any comparable space will have the exact same issue.