I've been here a couple of times for dessert. I love the compost cookie and cereal soft serve ice cream. The crack pie is really good too, but I could only have a bit because it's super sweet. I recommend to get one to share. The prices are pretty hefty for the quantity that you get.
No one serves you. You go to a refrigerator like box and grab what you like and pay downstairs. The ice cream is ordered at the register.
I have been meaning to get the birthday cake, but am hesitant to pay $40 (excluding tax) for a 6 inch cake.