Since Toney and Mimi lived in the same unit, it was super easy to communicate with them. We saw Mimi more often and she was so nice and ensured we were comfortable and had everything we needed. She was very good about keeping her home very clean and tidy.
Room C is the better option of the two since it is in the back of the house so I didn't worry about making too much noise when the TV was on. The bedroom is spacious and the common shared areas (bathroom & kitchen) had everything we needed during our stay like towels, toiletries, and snacks. They provide a key/lock to keep the room private. There was plenty of street parking and easy on/off the 405 freeway. Even though we had a car, it is close enough to walk to my favorite Alphabet district.
Since the unit is on the 1st floor and there are others living upstairs, you can hear footsteps and other sounds. I'm not too sensitive so it didn't bother me. If you are, earplugs would solve it.