Thanks for the note, I did not know that. I've only just started, and I'm not sure how good or thorough the Duolingo course will be. I thought it would be cool. :D It is definitely cool that you know some of it. :D

Polish is done with the Latin alphabet, with some accents and the "ł" (I don't know it's name, but it sounds like a "w"). It has far too many w's and z's for the comfort of an English speaker though. XD And some veryyyyyy detailed grammar.