I stayed for 1 week at Mariana’s place. The communication upfront and during my stay was perfect. She answered quickly and was always willing to help.
The appartement was clean and the bed comfy. The bathroom was clean (toilet, shower, sink, floor, bath), there were some stains on the walls. I think if these were gone you had a ‘cleaner’ feeling.
The appartment is not near the city centre, but it is duable to walk. You are near the famous Tram 28 and Santos train station is only a 5 min walk away. Metro and central train station is a 10 min walk.