I came here with an omni Japanese friend while we were in Sapporo for the snow festival, and we didn't have trouble getting a table. It was my first experience with macrobiotic food, and I was seriously impressed.
They had an English menu, on which vegan items were clearly marked. Some items are also marked "oriental vegetarian", I asked about that, and those items were vegan, and also did not include onion, garlic etc. Unfortunately, the English menu wasn't entirely up to date, but the waitress was happy to clarify any differences. She had reasonable English, and clearly understood veganism, so it was easy to determine what was safe to eat. After checking with the waitress, we determined on ordering multiple dishes to share, as we were advised that a single dish would be on the small side for a meal.
We had the miso "cream cheese", which, contrary to the description, did not taste quite like cream cheese as it had a strong miso flavour, but it was absolutely amazing in its own right; karaage (deep fried "chicken"), which came with some deep fried root vegetables, which was probably the best mock meat I've ever eaten, and the croquettes, which were also really good, just not as good as the other food. We also had a free starter, which was amazing, it contained the best piece of carrot I've ever eaten. My friend also had a chicken dish which I did not share, while I ate slightly more than half of each of the other 3 dishes, and this felt like about the right amount of food.
Then of course, we had to order dessert. I had the chocolate cake (I'm afraid I can't really remember the details), which was ok but nothing special, and my friend had a crème brulee (also vegan), which I tasted and thought was better than my cake.
I also had a Yuzu amazake drink, which I think was seasonal. It was really unusual but also delicious.
The meal for two people was expensive by Japanese standards, but it seemed very reasonable given the quality of the food, and it was positively cheap by Australian standards.
Cons: English menu not entirely up to date