Great and cozy accomodation on the border of Kreuzberg and Neukölln. Really suberb area, public transit is super accessible with a bus stop at the front door and Hermannplatz U bahn stop 10 mins away by foot. (Hermannplatz farmers market open 4 days/week which is amazing if you want to cook, and 3 grocers (2 organic high end, 1 budget for whatever your needs are) all 5 mins away)
Luiz is extremely helpful and exceedingly kind. It is clearly a home and feels like it, not a cold and impersonal airbnb suite. Luiz was always responsive and cares deeply about his guests wellbeing.
The space is homey and efficiently organized, small kitchen and bathroom, cleanliness is top notch. High ceilings and a very comfortable bed.
Some things to note:
If you are looking to cook, there is no kitchen knife, bring your own.
There is a washer AND dryer in the bathroom, quite rare in Berlin. I did not end up using either so I cannot review them, but I'm sure this will be a major perk to some.