This was a very good choice for a short stay in Tokyo. The hostel is very clean and well maintained.
The staff speaks excellent English and all of them have travelled widely so they know how to make travelers feel comfortable.
The common room and kitchen are fully equipped and there is free coffee and tea all day. You could easily prepare meals here but the nearby department store sells food so cheaply that it almost does not make sense to cook unless you are a larger group.
The hostel is very quiet and there is not much of a social vibe. Quiet hours start at 21:00 and it definitely is quiet. Rules around removing your shoes and absolutely no visitors are strictly enforced.
I stayed in a 4 bed dorm room (luckily I had it all to myself). There is an en-suite toilet, sink area and shower. There are small lockers for personal items and larger luggage can be stored at the desk.
The neighborhood is really good. Close to the Senso-ji temple and with multiple small restaurants and department stores nearby. The Asahi Beer office is around the corner and a really nice little park runs along both sides of the Sumita River.
Overall a great stay