Hey-what could possibly be wrong with that?
Actually, it probably is a better use of the space than another shitty fake-Jewish cafe in Krakow.
The "Jewish Quarter" of Krakow is just a money maker for tourists, with a bunch of non-Kosher "Jewish style" restaurants that have Hebrew letters on the windows and Klezmer musicians outside-but nary an actual, live Jew in sight-other than the tourists.
When I went to Poland with my Dad, I was completely creeped out by Kazmiriez.