I've eaten at roughly 20 of the late Gourmet magazine's Top 50 restaurants in the United States, and none of them exceed L'Etoile in terms of the quality of the food.
The best time to go to L'Etoile is in late July or early August, when virtually the meal is derived from ingredients from the wonderful farmer's market right across the street.
The new location is even better than the old one, and unlike many other relocations, the food hasn't missed a beat. It is worth the drive to Madison to eat here, and L'Etoile is easily my favorite restaurant...anywhere.
L'Etoile also offers excellent demonstrative cooking classes on Thursday nights, but sign up early because they fill up very quickly.