Me and my brother had such a really great stay at Kei's place. Kei is the best host, I couldn't ask for more. Eventho we didn't meet but he was taking care of us as good as he could be. Prior to my departure he sent me detail directions to his house.
Kei's place is nice and clean, you'll stay at his whole 2nd floor with a room that has a warm and comfy futon. The nearest train station is 5 mins away walking from home. Right in front of the station you'll find groceries and a bread store. It has a quiet and nice neighborhood also. Altho his place is a lil bit far from downtown, but hey you're in Japan! Why don't you take a longer time while enjoying the great atmosphere of Japan. You won't regret it.
Next time I visit Tokyo, I definitely will stay at Kei's place again.
Arigatou gozaimashita, Kei-san!