I didn't get sick there, but I only had a choice between two salads. As a vegetarian with celiac, this isn't totally unusual, but it means that I wouldn't go back. Their menus vary at the different locations - if you're checking them out online ahead of time, be sure you're looking at the right one, since there's a bit of variation. Also, take their menu disclaimer seriously. Our server said that the ice cream was GF and raved about it (which was deserved, since it was delicious), but I'm glad I only tried a bite - checking it out later, I saw that it's made on shared equipment with wheat, which is a risk I don't like to take.
Matchbox has a dedicated gluten free menu that you can ask the host/hostess for when you arrive. Make sure you tell your waiter that you are avoiding gluten so they can make a note for the chef because some of the menu items require slight modifications to make them gluten free. The shrimp and grits dish is awesome!
Great atmosphere, very good service and food. I had the pork chop (there was no shortage of excellent options on the GF menu) and beet salad. Chef came by to check about my comfort level with how they roast their veggies (in oven with pizza) and offered a safer alternative if I was concerned about cross contamination, which was super impressive! My husband had their pizza, which he said was excellent. I noticed on the way out that their pizza prep is outside the main kitchen, which is also reassuring. This place was doing their best, and that's all you can really ask for.