Steemfest2 was the first and (so far) only time i've been on Europe. When I first landed on Lisbon and collected my bags, the only question in mind was "What the hell happened in the past 29 hours?", I was dumbfounded that I wasn't somehow trafficked to some human meat market considering I had no idea what to do throughout my whole 4 leg flights from my small town to Lisbon..
It's exciting, amazing, and scary as hell all at once.. Its exhilarating.
Word of advice though, since you're flying eastward the jetlag is gonna hit you in Poland. Not so when you fly back. Its the other way around for me as I fly westward. Maybe land a day ahead or use the Jetlag-calculator thing from the web?