The appartment is small but very well organised and very silent with a convenient double bed.
Localization is splendid: museums and Altstadt are within a walking distance and there is a lot of cheap fast food bars in the same street or nearby.
Jessica is a very nice and helpful person. Check-in and check-out are very easy - Jessica is/comes directly to a place at the appointed time (she normally lives there).
Searching for an accomodation I have chosen the option "whole place" so I didn't expect that a toilet and bathroom are shared (Jessica has written that at the end of the description but I didn't read that far). It is also good to know that it is a high 4th floor (without elevator). Because of these things we felt like being back in our students time, which, unfortunately, was quite a long time before.
Summing up it was a nice stay.