As a guest of Akasaka-no Sato - Caters to Women - Hostel, you'll find laundry facilities and a microwave in a common area. WiFi is free in public spaces.
Location is great, close to the subway and lots of restaurants. The room was very small (as expected), and the beds were very uncomfortable. Also, there is very little soundproofing, so we could hear the other guests in their rooms.