the three stars are for the location because it's astonishing.. it's close to everywhere and especially to the central train station (5-min walking distance)
However, the place was not very clean and we had laundry in the dryer, cups in the dishwasher, etc.
Also, the host vanished during the check-in which cost us some time and effort because we had some problems with the self check-in and he did not reply for hours..