Koichi san is very friendly and kind. He offered us 2 big bottles of water and one big box of orange juice as welcome drink of us ( a family of 6). The idea he keeps the key room is so creative and convenience. The room is clean and comfy. If you have more than 4 people, you might have to manage time in the morning to use shower room. The pocket wifi he offers to guest is very useful. The location is good, quiet but near everything. He even drove all of us to Shinjuku Sta. to catch the airport limousine to Narita. I would recommend his lovely apartment to friends for sure.