Extremely popular and extensively reviewed, and for good reason. Excellent food quality, quantity and variety at a competitive price. My dining partner and I shared a Special ($13.9++) and Vegetable ($12.9++) bowl; the Special is better. Prawn, egg and pumpkin are excellent, whereas the brinjal and lotus root could be better. Leafy veggies are interesting but would have been better with less batter.
Food aside, Tendon Ginza Itsuki impressed me most with what I see as high responsiveness to customer feedback.
• Many reviews mention the long queues; the vendor responds by placing chairs to sit, providing free dispenser drinks (barley tea was excellent, much better than any drink they sell inside) and using an efficient pre-ordering system.
• Many reviews complain about the ventilation; management clearly decided that renovation or a larger location were not viable, but still made a very amusing effort in providing fabric spray at the payment counter.
• Many older reviewers did not like the chicken breast. The chefs have responded by tenderising and seasoning it brilliantly.
This kind of attitude to improve and adapt is not always present amongst merchants who already have very good business flow, and I think staff and management should be proud of what they've accomplished here.