Stayed here for 3 nights when I was traveling in Japan and really liked the place.
I got a really good deal in combination with a stay at the Hyatt in Kyoto (still available in 2011, Explore Classic Japan deal) so I ended up paying way less than most places while in an expensive city.
The hotel is a little big and "cold" but the service is great and the rooms are really nice. Location is good close to the Sjinjuku station for trains and subway. Just a 15-20min walk or a few minutes with the free shuttle bus.
The fitness club and pool were a little small but to make up for that the free internet connection in the room was really fast :-).
I also liked the cafe on the ground floor for breakfast and there are plenty of places to eat (and shop) not too far.More