Expect chaos between 11:59am and 1:30pm but often worth jamming yourself into the small waiting space and into the crammed rooms full of tables.
Portions are large and inexpensive for the financial district. Service is lightning fast and table turnover is encouraged. I get the sense MSG is used here - often feel a bit fuzzy after an hour or so but that could be from the quantity of food. Don't order more than one dish per person.
Oh and expect to smell like Chinese food after (not the best location on a day when a suit is required).