Recently rentured from good four days in Berlin. The appartment was well equiped, fresh, good size, we liked it.
One of the two double beds in the appartment was not comfortable. When brought to receptions attention, response was kind and swift, howe ever, without spare full size madrass available, the result was not entirely successful. We were to be contacted about some kind of compensation..
that bed-model was said to be exchanged soon.
The close by Görlitzer park do have droug dealers hanging arround, but they are not hostile or anything. I think the windows of the appartment, facing the street, is not very well isolated, luckely not much traffic or at night loud speking pedestrians. Berlin have very good public transportation, buss 29 close by runs every 10 minutes and bring you to the U-Ban / S-Ban net. On a paralell street there is a small but pretty good assortment food store.