In the past, I've only been to the Gambey location, but tonight was at Oberkampf. Absolutely spectacular, as had been the two earlier on Gambey (the two restaurants are about 20 meters apart).
I'm too tired to recount tonight's meal, other than to say that the combinations of textures and flavors was spectacular. I usually like things very simple, but here the ingredients are combined with such care and skill that each remains separate, yet perfectly integrated.
A bit of news/refreshing:
1. Previously, both locations were no reservations, then they switched to reservations accepted to six or more, and now reservations are accepted for parties of any size -- so be forewarned.
2. I think Gambey had been open 7/7 at lunch and dinner, as Oberkampf is, but it is now Tuesday-Saturday.
3. The difference between the two:
a. Oberkampf is 39 euros for six courses, and the style is that of a French bistrot with a little bit of Asian influence.
b. Gambey is 49 euros for six courses and the Asian influence is heavier and the ingredients a somewhat more costly.
Again, I urge you to try one or both -- some of the most exciting, well-thought-out, and intuitively-brilliant cuisine you will encounter, and in years to come, you will marvel at how well you were able to eat for how little. But now you'll have to book in advance.