Satoru is a great host, very helpful and nice person. Flat itself is very cozy, we were there 5 persons and it was already a bit "crowded", but still good (it is great for 4 persons). Very good apartment for reasonable price with all the amenities we would ever need. It is in great location - 10 min. walk to shibuya and ebisu station, convenience store across the street (and few more down the street), a lot restaurants nearby...
I highly recomend Satoru and his flat :)