I don't know about celiac safety, but the ONE (1) gluten free pastry option(banana loaf) was delicious, light, moist and fluffy. However, to the user who stated their pastries are mostly gluten free, this is definitely not the case. They have 1 option, out of like 10-15... so... yeah. Yummy, but you don't get a selection.
The staff were so helpful in finding me something gluten free on their menu! They even toasted my bread on clean foil in the oven, rather than in the toaster so I didn't get cross contact. Great food and drink, but they no longer serve crepes which was a little disappointing since that's why we went there.
Most (if not all) of their pastries are gluten free. Just be sure to specify that you don't want things like the breads to be toasted!
Crepes are not celiac safe- just ok for people on a gfree diet.