Masazumi is a great host! He met me when I checked in and went over the house operation with me. He also showed me a notebook with pictures describing what he had just showed me, how to use the various electric appliances (stove, hot water heater, AC/heat, etc. If you read Kanji you probably wouldn't need this but if you don't (like me) it's very handy. He had also prepared a special write up for my visit highlighting some of the areas attractions, featuring cherry blossoms as they were peaking during my visit. He and I communicated several times during my stay by email and he was helpful and solicitous and made several suggestions to help me enjoy my stay.
The bed would be considered twin size in the US and is a little firmer than I prefer, but it is standard for Japan. Futons are also available to sleep on the floor (I didn't). The neighborhood is very quiet, yet only about ten minutes walk from Matsudo station on the Joban line. Matsudo is not central Tokyo by any means but it is convenient to reach Ueno (20 minutes) which is one of the major stations on the Yamanote loop line that more or less defines the extent of downtown Tokyo. You can cook in the house but there are plenty of options around Matsudo station to eat out too. I didn't cook but Masazumi provides some seasonings and basics if you choose to.