According to their name they offer a small selection of home made ice creams. But you can also have lunch, snacks and coffee there. I went there for a lunch break once and had a celery soup which was fantastic.
This place seems to be quite unknown which makes it pleasant because it is quiet and not crowded. It’s just a nice spot, with a fantastic interior design, where you can enjoy your break from your city tour and cool down with one of their ice creams.