The place is great.
There is one toilet, a shower and a heated bathroom with a shower and a bathtub. The washing machine is great and has drying functions too.
There is a tatami room where we had breakfast and organized our day.
The beds are very comfortable and the bed covers kept us warm during the night. The only downside of the apartment is that the chair bed wasn't as comfortable as the rest of the beds.
I would totally recommend this place.