Good if you want a hotel, not very good if you want an apartment. I did a reservation for 2 people, its suppose to be an apartment where we can eat, but there were only one desk and one chair, so I asked for a second chair so we could eat inside with my wife, they told me I had to pay 3000yen more for an additional chair, I was very surprised. So don't expect to eat inside if you are more than one.
Otherwise, it was very clean and the staff was kind and very quick to answer any inquiry. Its also a bit noisy as there are around 50 to 60 rooms on each floor.