The apartment is located near Otsuka station, which is a quiet neighborhood, very different from the busier areas of Tokyo. We were a bit tired of the hustle and bustle, so it was a very welcome respite. Ikebukuro (the female otaku area) is also within walking distance (around half an hour) and the walk is quite charming. You can also just get on the jr line to reach it.
They place was really comfortable: it was clean and spacious and it had a great kitchen. There is only one sofa with room for three, apart from some floor sitting.