I bought a small pizza (although the size wasn't mentioned) for about US$15. And it was a pizza without sauce for a base, because that's the only thing the server could think of that's vegetarian at their establishment. The view is stunning, but not much else. Just don't get the pizza without a sauce. I forgot the name, sorry! It's somewhat over-priced, I'd try another restaurant in the area.
+ the service was absolutely awesome and the servers were very attentive and nice, even though we don't speak Japanese. Maybe their other options are good, so 3.5 stars.