I've been going to Kumori on Nolana for about three years. The food is delicious. However, the service needs MAJOR improvement. Often times they're understaffed, slow or not very attentive.
It does help if you're a cute girl though. As a frequent customer and a cute gal I usually get good service. I do notice other customers who do not receive the same treatment and have heard awful stories from friends about the rude service they've gotten there. A friend of mine stopped going to this particular Kumori after she got in an argument with the manager, who was rude to her after she informed him that their food took almost 30 minutes to get to them. They're almost always very oblivious to refills.
Overall, if you want a chill atmosphere, good sushi, don't mind the wait and are ready to put on your best puppy dog face to get better service you should check this one out. If not, try the Kumori on 10th it's a lot better.
Pros: Great food, affordable, variety
Cons: Horrible service, sometimes long waits