Claudia's place was clean and near a metro station Arroios. Even though it wasn't right in town, it was still relatively easy to get into town with the metro. It is right on a main street, so if you don't mind traffic noise then it's perfect, if you do, then bring earplugs.
My room (number 6) was right where the renovation of the exterior of the building (of the guesthouse) was taking place, so there was construction noise.
Claudia got back to me for most of my questions, not all (when I asked about the location of her place to the nearest train station).
Her place is clean and tidy, so no issues there; however, if you have allergies to scents (scented products) like me, then her is place is very heavily scented due to synthetic air fresheners, sprays, and diffusers. I communicated about my allergy, but there was nothing done about it, the spraying went on.
Overall, if you don't have allergies like me, then it's a good place to stay.