Pretty good! Not everything is Gluten Free, so read labels and ask. Very accommodating, but we've had errors in orders before (also dairy free). Might have changed, but it seems they had a lot of turnover in baristas in the past, so knowledge doesn't necessarily ooze out of every employee.
Be sure to beware of crumbs on tables/chairs.
— Somewhat
— Gluten-free items are marked on the main menu
— Some
— Good