Gluten-free review:
They offer cups and you can get either and single or double scoop. They pile one flavour on top of another for a double scoop instead of side by side. They also have a LOT of gluten-free gelato options. Most don't have cookies, brownies or other wheat - based additives. I got the hazelnut and green tea flavours, both of which were delicious.
Cross contamination may happen with the scoops they use since it looked like they soak them in water between uses rather than having different scoops for each flavour. I didn't have any reactions, but I have a moderate gluten intolerance and not Celiac's disease so I'm not as sensitive as others.
Tl;dr lots of flavour options, possible cross contamination with scoops