We had a nice 3-night stay at Yume's place.
For a short visit in Tokyo, we wish the place was closer to the subway/ trains. On the map it seemed like it's right next to Shinjuku but it was realistically about 30min from Shinjuku Sta on foot or by subway.
The home has everything you would need. The heaters work well, great water pressure and hot water in the shower but do note that in winter, the staircase, hallway to and from the bathroom (2 floors below the bedrooms) can be really cold. I would suggest bringing your own robes or if the host can provide robes at the house for that reason, that would be great. Luckily slipper are provided and they're very helpful!
All in all, it was a nice stay.