Arguments for getting your Vietnamese fix here instead of on Argyle: (1) The space is stunning, with chandeliers that look like atoms, dark leather banquettes and tropical plants evoking a French-colonized Vietnam. (2) When you’re served the banh xeo (Saigon crêpe), the friendly waiter will explain not only how to eat it, but its history. (3) That banh xeo is incredible. (4) The ca hong dam nuoc mam (whole red snapper) is so tender, so lightly fried, so flaky, you’ll pick at the bones like an alley cat. (5) The prices are pretty much the same as Tank Noodle’s. (6) There’s booze.