My friend refers to this place as "Hitler's Bunker" but I choose to see the romantic side of Kazimierz. I love the dark, cool interior with the large comfy sofas and chairs.
It can be daunting to find a bottle of wine since the list is incredibly vast. I usually settle for a wine flight like the French Kiss or I open up the book to a random page and swirl my finger around until I land on a bottle in my price range. The flat bread pizzas and fruit and cheese trays have been nothing but impressive. Some of the waitstaff can be a bit surly but most of the interactions have been quite positive.
All in all I think this is a superb place to take a date after a nice dinner so you can unwind.