Tanuki's decor is crazy. There are tons of Tanuki statues as well as Japanese and Chinese kitsch and some live plants here and there. There's a garden and fountain, too, but I haven't seen them.
Tanuki has only a few sushi selections (roll variety) for vegetarians/vegans: a vegetable roll and an avocado roll. Both are delicious. They also have the standard Inari nigiri--I haven't tried it. Also good is the yakisoba, though those who want the usual (or so it seems) half and half ratio of noodles to cabbage, you won't be happy. The yakisoba here has many vegetables--eggplant, mushrooms, zucchini, onion, etc., but not a lot of cabbage. For that and a tad too much grease in I can't give them a full 10. =) Still a great place, though, and the staff is really nice.
Note: there are plenty of vegan dishes like tempura vegetables and udon (not served/cooked in fish oil/sauce or chicken broth), but I can't stop eating the yakisoba.