All of the busboys and poets locations take food allergies seriously, and have many different offerings. When you open the menu (it is electronic now) there is a separate GF menu tab with many delicious options. Servers know enough to mark food allergies, and the kitchen knows what to do from there. Been to multiple locations and not been sick. Keep in mind that service is slow at all Busboys and Poets. This was true even before covid, and didn't matter if you're celiac or not. The food is prepared fresh; however, it can sometimes take a long time for even a server to come to your table when you sit down. This is especially true at this location, less so at the Takoma location.
I have eaten there about 10 times, and have now been glutened twice-- both times symptoms showed up after a few bites, then I confirmed by a lateral-flow gluten test that the food was cross-contaminated. I had a third near-miss when my food was brought out with croutons on it. Fine for gluten-sensitive folks, but not for celiacs.