Came on a Saturday afternoon at 1pm. Waited 20 mins before getting in. If you come with 2 people, you'll get in faster (there was a big group of 5 who waited way longer than us because they had trouble seating 5 people together). They sat us in the two stools by the door facing Dundas St. W. We came in January, and so it was cold whenever someone opened the door.
Food: EXCELLENT. SO GOOD. I had the Shoyu with thick noodles. There were a fair number of bamboo shoots (yay!) and MAN the egg was SO GOOD. The yolk was bleeding into the hot broth and mixing with the thick, chewy noodles. He had the Tonkotsu Black with thick noodles. I had a taste and my verdict is that the Tonkotsu Black's broth is better than that of the Shoyu.
Didn't have any sides or desserts, a bowl of ramen was more than enough for a hearty meal.
Washroom: In the basement, kind of dirty tbh. I'm not a fan of dark, dimly-lit washrooms, and this one was no exception. This would be the only con of Sansotei.