may you please elaborate more on why France was the most frustrating?
The paperwork and incommunicado government officials are like something out of a Kafka novel. My wife applied for her entreprenuer license six months ago. (We thought it would take two weeks.) Nothing has happened. It took two months to get internet connectivity after six or seven scheduled meetings where they just didn't show up. Open a company? Forget it. There's a lot more I won't go into. At first we put it down to that we are not native French speakers but after talking to some others, it seems that's not the case. So, in a word: frustrating.
That's just my personal experience; YMMV.