The apartment has great location, right in city center between Sao Bento station and the river (5 mins walk to either). check in is easy. hosts communicate very prompt. apartment has all basic amenities for a short stay.
only note is it is right at a small plaza where there are quite few busy restaurant and street performance. so it is loud at night till 11pm or so. though we usually were out for dinner at that time so it didn't bother us much. and after 11pm it is very quite.