Jason and his housemate were fantastic hosts! I stayed for a month, and they were both available and responsive to pretty much everything I could think of, and I appreciated their hospitality a lot.
The room is a bit small but very comfortable and clean. The upstairs living room and kitchen were quite nice, and I enjoyed hanging out there during the hot summer days watching Netflix on the big flat screen. The neighborhood is quiet and peaceful, and Ikebukuro station isn't too far away (15 minutes).
Would definitely stay here again!