Shin and Sho's house was exactly like the pictures provided. The location is very accessible from the Higashi-Nakano station (just 2 stops away from Shinjuku) - the walk to the house next to the railway station was nothing more than a 5 - 7 minutes walk and was very pleasant as the area is very quiet (other than the occasionally train sounds).
The house was very clean and everything that we needed was provided in the house (e.g. towels, utensils, shampoo, etc.). Loved the bathroom and all its convenient functions.
Shin was also very responsive, contactable and flexible at all times throughout the trip, constantly checking up on us via messaging. All in all, it was a great stay in a good location :)