I have mixed reviews after visiting. I was disappointed that the Gfree cupcakes were only available from the freezer. The Salted Carmel cupcake was good, moist, generally enjoyable. On the opposite side of the review was the Chocolate Fix. It was hard & dry and completely unedible. I only visited because they were on Cupcake Wars. That's not enough to bring me back.
I went to the Battlefield Blvd shop (not Colley) but I would think Colley is the same. The Battlefield shop had a separate cabinet with gluten-free cupcakes and they are not special order! The cupcake was so well-made it barely tasted gluten-free to me, though it definitely was from the ingredient list listed on the container. Also, 20 seconds in the microwave made it even tastier!