Kuninaka's place was exactly as described. I used it during a long (18h) layover that required me to transfer airports (Haneda to Narita). I got in fairly late but Kuninaka was very understanding and was able to check me in fairly easy even at 12am. His place is in a more residential area and access is generally easy but takes a bit of effort if you have a lot of stuff with you. However, there are enough bars/restaurants/things to check out if you wanted to do a bit of exploring. Also, I am not sure if Kuninaka has a spare key to allow ease of going in/out of the home without someone being physically there to let you in. As for the room itself, it was definitely basic, but was still very comfortable. Bed was comfortable, TV was nice, and there is a personal-use air conditioner for the room. The bathroom and toilet are shared, but are very nice as well. It definitely had very good value if you are only looking for somewhere to rest/sleep.