Just got back from Paris, where I was armed with a NY Times article from a few weeks back covering L'Atelier. While many of the descriptions in the article were spot on (setting, diversity of selections, wine list, etc.), one aspect that was not remotely accurate was the cost . . . the Times writer thought for some reason to say that one could get out of L'Atelier for under 50 Euros per person (I really have no explanation of why the writer would do this - does it make it a better "scoop" to find a cheap Robuchon restaurant?).
However, the writer's assertion is absolutely not true (unless of course, you're willing to first spend 4 Euro on a sidewalk gyro before you go in). The "appetizer" portions range from 10 to 20 plus Euros and are more amuse-size portions than apps (for instance, a langostine app. is one very tasty medium-sized shrimp tempura, and costs 16 Euros). The "entrees" had a much higher price range - as an example, the asparagus, morel and parmesan salad "entree" is 35 Euros. In addition, unlike most of the bistrots/brasseries in Paris, L'Atelier also adds another 19.6% VAT to the end of your bill . . .
Thus, go to L'Atelier not expecting a good deal, but go expecting three star food at three star prices.