Large living space with bedroom up very steep stairs/ladder. This was fine for us, challenging at night and being 7 months pregnant but still ok. The toilet is downstairs and the shower upstairs. Very comfortable bed. Kitchen was shared during the day, which didn't bother us as we were out sight seeeing anyway! Lovely ambience and old building.
Betty was very helpful with places to eat and accommodating to our late check in. Accommodations was very close to the U8, which allowed us to get anywhere over Berlin with ease.