Very good experience!
Every icecream flavour has the allergen information next to their names. There is plenty of choice in glutenfree flavours, not just the regular fruitflavours and vanilla (but think of snickers, pure/milk/white chocolate, bounty, stracciatella, etc.)
Glutenfree cones are also available. When you tell the staff you have to eat glutenfree, they wash their hands, get a clean scoop and scoop the icecream from an untouched side!
Most staffmembers are very well informed about allergens and will do everything according to guidelines.
There are also glutenfree bonbons and chocolates.
— Somewhat
— Gluten-free items are marked on the main menu
— Most/All
— Excellent