Mitsuko san's house is so lovely.
Everything is clean and well organized.
The bath room is a bit small but I am ok with it because we are it Japan!
The location of the house is so cute as it located in Rokko shopping street which you can see many shops and you can buy many stuffs for your living.
You can walk from the house to Shinjuku station, it takes around 20-30 minutes upon your walking speed. I recommended you to dedicate your time to walk to see local houses a long the street and also some nice buildings around Shinjuku area.
Finally, I recommend you guys to stay here!