I've been here for breakfast a few times over the past few years, buying cakes, bread, and pastries. The selection is great and the service is friendly, although it's often understaffed. On a Friday morning, when the store opened, there was only one employee to serve the counter and tables. Even after a second employee arrived, we had to wait over an hour for our breakfast. Drinks at the next table didn't arrive for 40 minutes, and at another table, customers got up and left the café because their food hadn't arrived. We ordered bread with avocado and egg. It was really delicious, but for €15!! (without a drink), it was a bit meager. The same goes for the cakes. They taste good, but at €5-9 each (the size is roughly equivalent to a small slice of cake), it's so expensive that buying something there has unfortunately become an absolute exception for me. It's a shame considering that people with celiac disease often have to go without such things.
It still gets three stars because there are simply too few shops that offer purely gluten-free (and many vegan) products.