I was there yesterday. At first for a Matcha Ice Tea in the Morning.
There's plenty of room to sit. It's self service.
Check out is fast.
Then I was there for lunch. It was crowded but still a friendly atmosphere. My friend and I put all the food we liked on our plates which resembles in 26Franken for me and 34 Franken for him. (plus beverages) To be honest. That ist quite a lot, even for Zurich. But I have to say: All fresh and well tasting.
They also have vegan sorbets, which I haven't tried but they looked nice.
Beverages come in plastic bottles.