Ryusei's house is very functional and suitable for a place to base your activities in Tokyo from. The washing machine and shower worked well. The futon was comfortable and I slept well.
Be aware the ceiling is low, so you can hit your head easily if not careful.
The only thing I had a problem with was the internet, which failed. I think the data had not been replenished and so it was rendered unusable. Although later Ryusei did fix it, it is still something he must keep an eye on because people would be doing work on their computers using the internet connection, and having that fail at a critical time could be highly problematic.
However, I think Ryusei will fix that internet issue.