Arrived on a very large flight, and it seemed like half of us ended up at this location. This meant the staff were swamped, and quite slow. I had to repeat several times that I wanted a gluten free bun on my grilled chicken sandwich, and it took a few back-and-for the to get it through. When I received my order, I got a crispy chicken sandwich (on regular bun). After trekking back, they replaced my order. After all the hassle, I ended up sick just in time for my next flight. I would avoid if the location is very busy, since I think this led them to be rushed, error-prone, and ultimately unsafe.