Keita is a warm and helpful host. The house and the room are furnished in traditional Japanese style. Of course, the high-tech toilet is also a must. The house is located outside Tokyo, you should be aware of that. I liked it very much, because you see something else, e.g. Mount Takao is not far away. But you can also get to Shinjuku quickly by train.
I'd definitely be living there again when I get back to Tokyo.