Monopolowa is decent. Luksusowa is just barely OK...i think that Zubrowka is amazing!!, but it does have a slight flavour to it. Its great with apple juice--the polish way to drink the stuff. As far as clear vodkas go....i really think you have to spend some $$ to get a decent product. Obviously vodka is much cheaper in poland than in the US...which is where I get mine

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Smirnoff and Absolut are fine if you're drowning it with another flavour....but if you're drinking vodka for vodka's sake you need quality or else you might as well be drinking gasoline.
-W