I've been to Kazimierz many times. I keep going back because while the experience is always enjoyable, it's never exactly the same.
It's the perfect spot to enjoy a nightcap (if you can find a seat), or slide in after a long day at work. The wine list is as expansive as you'll find in the area, and there's a bottle for every price point - some of my favorites have been under $30 a bottle, but if you've got a grand or two blowing a hole in your pocket, I'm sure they've got just the thing for you as well.
Sometimes it's even enjoyable to walk in by myself on a weeknight, and read the wine list over a glass. It's that big.
To me, it's the kind of place that bears checking out at least once.