Is a great place to stay and live like a local. I stay for two months and got a great experience. Steps away from Hirai station is a convenient JR station that can take you to Tokyo Center or main lines in a 20 minutes.
The area has a pedestrian shopping street really useful to buy daily products.
The river side is also nice if you want to take a walk or make a picnic.
The house is Japanese style. It has all the amenities to feel like a home, cooking place, full kitchen, room with tv and lamp, tatami room, dining table and washing machine (shared)
Humidity is a fact all over Japan so here is no exception. The room provides air cleaning machine and Mariko also offer other machines to clean the air. I suggest to dry your cloths not in the room but in the laundry 3 blocks away for 100 ¥ you can have 10 minutes drying service. If you dry at home or outside your clothes may not fully dry and may take some smell.
It can get a little bit cold at night since there is no so much sunlight during the day and like all Japanese houses your neighbor is really close, so except to get used to the sounds of your fellow neighbors.
Mariko’s is really kind and thoughtful person. Thank you for everything.