The communication with the hosts was great, but do have in mind that it is a very old building: you will have to carry your baggage three floors up on the stairs. The flat is equally old, with a peculiar set up and two windowless rooms. The walls are thin, so you might hear the other rooms and flats in the building.
Nonetheless, the noise from Bairro Alto didn't bother us and the check in and out was very well organized.