a. One of the guidebooks said that Tokyo had more restaurants per capita than any place in the world. This (http://www.worldcitiescultureforum.com/data/number-of-restaurants-per-100.000-population), this ("See 143621 TripAdvisor traveler reviews of 16304 Kyoto restaurants and search by cuisine, price, location, and more.") and this (http://www.ageekinjapan.com/474048-restaurants-in-japan/) suggest that Japan, in general, and Tokyo and Kyoto, specifically are great restaurant towns. Within blocks of either of our hotels in both of those cities, were literally hundreds of places (ranging from holes in the wall to fancy) to choose from on a given night. Lisbon seems to be the only other place in that league, with the US top restaurant (San Francisco) far behind, in terms of restaurants per capita and Michelin stars awarded.
b. stop into any restaurant in Asakusa, Tokyo, or the area between downtown Kyoto and Gion (the less obtrusive the better) and you're likely (with probability approaching 1.0) to find good and interesting food.
c. despite one previous trip to Japan, prior to this trip, my best experience with Japanese food was at Kyo Bar near Notre Dame Basilica in Montreal. @cgwarex and @mikebristol might know that place.
d. next time I go to Japan, food will be one of the reasons.