Debbie - If you have time to do so, it might be worthwhile to join Imperial Club International. It doesn't cost to join (at least it didn't cost anything a few years ago)and can sometimes be quite useful for discounts and upgrades. They used to be a bit slow in processing the memberships; so you should apply promptly.
I love the location of the hotel, very close to the Imperial Palace complex and an easy walk to the Ginza. The restaurants in the hotel, as Ted and Marc have noted, are preposterously expensive; but there are lots of restaurants within a few minutes walk from the hotel which are both excellent and reasonably priced. There is a cute little alley of yakitori (grilled skewered chicken) joints nearby that is great fun. Yumm, great memories of skewers of grilled chicken livers & gizzards brushed with a glaze of sweet soy syrup.
The food courts in the big department stores in the Ginza are remarkable, as well. They have everything from grilled Kobe beef to handmade Belgian chocolates.