It is no surprise that most diners here enter through the St. Regis Hotel lobby entrance—Ame is understandably popular among hotel guests. Beyond the small sashimi bar, find the main dining room and long exhibition kitchen framed by a deep red accent wall and high, dramatic ceilings. Soft lighting and floor-to-ceiling windows dressed in gauzy striped curtains complete the agreeable setting. It may have a corporate edge, but this is balanced by a smattering of couples enjoying a romantic meal out. The professional (but not overly formal) staff is friendly and shows clear knowledge of each menu item. In addition to the two tasting menus-one for the sashimi bar and the other a broader "Taste of Ame"-the ample feast may begin with such starters as superbly seasoned triangles of za'atar-spiced flatbread toast points with a sprinkle of fresh mint sprigs and a mound of chopped yellowfin tuna tartare. This can be followed by pan-roasted halibut over potato gnocchi sauced with a red wine nage and outrageously delicious little mushroom crisps. To finish, try the rich and flavorful pumpkin crème caramel; or perhaps the creamy, wonderfully nutty, and subtly sweet white sesame blancmange.