Thorsten had good communication and left very clear instructions about how to get into his flat; and the location is fantastic. The flat is small (big enough for two, but three would be too cramped), we got fit going up and down 5 flights of stairs, and it's a courtyard view; it was light on the amenities (no shampoo or laundry detergent, half a roll of toilet paper, and one dishwasher tab for a two week stay) but we were provided with fresh towels and sheets after a week.
If you are looking for a central location just to sleep in, this is definitely a good, economical option!