One's experience at Kazmierz can really depend on when you go and who you go with. Moreso than most places, it seems. For example, one night I came here with some friends and it was packed to the brim with obnoxious socialites getting wasted on their husbands' Amexes. I felt like I could have had the same deal across the street with a Smirnoff Ice at Saddle Ranch. But on my last visit to Kazmierz it was quiet and mellow with middle eastern music in the air. I also sat next to a tipsy "Francesca" at the bar who claimed to be able to read my aura.
I for one, love Kazmierz for the little elitist comments peppered throughout the wine menu and the general nose-positioned-firmly-upward attitude about wine that most of the staff has. Sometimes it's just more fun when you're drinking a Slovenian white from a place you've never heard of and certainly couldn't pronounce. There are definitely some things on this menu you won't see anywhere else. You have to be adventurous. If you are looking for your usual glass of KJ, you're going to get a scoff and chuckle. (Oh, and never ask for a mint julip, either.)
As far as the food goes, it's good. Their Egyptian Flatbread pizzas are surprisingly delicious. And the fondue was enjoyable. But the wine is really where it's at. Kazmierz is impressive, unpredictable, and a little bit strange, but boasts the best wine list in Old Town by far.