This is a really handily located hotel - walking distance to Shinjuku (and a fun walk too), or just one stop away on two different lines. The room fitted six which was key for us - yes it was crowded but it worked!
The room was clean, had a really good shower room, and very handy washer/dryer. Morning breakfast was a buffet - limited choice, but absolutely fine.
Our one gripe - costing it the fifth star - is that our room was incredibly stuffy, and no matter how low we set the air conditioner, it did not lower the temperature. The only poor aspect of our stay.More