Never drove in Berlin, but it can't be as bad as Paris was. I'm in Abu Dhabi right now and Abu Dhabi is also worse than Pittsburgh, but not too much worse.

Mostly its the roundabouts that irritate. Not the roundabout itself, but the fact that I seem to be the only person in the entire country who knows how roundabouts work. Like a gun in the innermost lane of the roundabout deciding he wants to exit to the outermost lane of one of the exits so he cuts across two lanes of traffic at the exit and barely misses people who are still moving.