I stayed at Stella’s place for 2 months over the summer and I would highly recommend it. It is a bright and quiet room in a residential part of Bushwick.
The place itself is very clean, with a large kitchen/living area and two other bedrooms, the other guests during my stay were always quiet and respectful. Stella lives in a separate apartment downstairs but was always available to help. The room has AC, storage space, a desk with a TV and great wifi.
There are delis, laundrettes and supermarkets just around the corner, and the subway is ~15 mins walk to either Myrtle Wyckoff (L&M) or Halsey St (J). Each line goes in to Manhattan in ~20 mins. The L also goes to Jefferson St (for Bushwick bars and restaurants) and Bedford Ave (Williamsburg). There are also cool bars within walking distance, eg Father Knows Best and Bar Cornelia.
Overall it is a perfect place to stay to experience Brooklyn and visit Manhattan!