Been here many times and tried many flavors. All delicious. Nothing is labeled but most flavors are GF unless they add cookies or pie crust. They also checked for me that the hot fudge, Carmel, and whip cream are GF so sundaes are a go! Depending on who's working you get varying levels of knowledge but usually someone is at least there they can ask if needed.
— Very
— No gluten-free information on the menu
— Most/All
— Excellent