Staying at Issyuku's place has been our pleasure. It's nicely located in a quiet area and within a few minutes to the train station, some restaurants and convenience stores. We had no issues with check-in or check-out and the apartment itself was very comfortable for seven people. The two bathroom was very necessary for the seven of us!
The only thing we'd like to point out is that the bed and pillow was quite hard compared to other places.