Haruko lives in a trendy neighbourhood where apparently lot of japanese stars reside. there are a lot of great little bars and restaurants around and if you are into shopping you'll find plenty of big labels and indie shops around the metro station.
the room is small but you will definitely be able to experience tokyo life and its restricted space as much as the traditional futon sleeping. for 2 persons the room is pretty small and i recommend at least to book it as couple or as a single inhabitant.
haruko is very sweet and welcomed us with tea and fruit when we arrived and cooked an amazing complimentary traditionnal japanese breakfast!
although she doesn't speak english but her smile says more than thousand words. additionally a friend of her supports her and will be able to give you great advices where to go and what to see at any time of the day.
i recommend staying at sweet harukos place (single or couple being out often)!