Food was great with large choice of restaurants (17 including lounges). We went with Travcoa so meals, including any restaurants, were included in the tour price. Language was not a major problem - concierge provided us with Japanese language destinations for taxis. To give you an idea of prices, we had dinner at Kamon, the Teppenyaki restaurant at the Imperial - the tab was $520 for two not including wine , and it was not the most expensive thing on the menu!
This was our first time in Tokyo in 20 years - it has changed.