I moved to Alsace 13 years ago for my husband's job - he had been made redundant in the UK and this was our chance to start again.
So what are the pitfalls?
How much do you know about yourself? How much do you like yourself? How much are you prepared to face new challenges without the safety nets you have been used to in the UK? You will have to be very self-reliant, and be honest and ask for help more often than you are used to. You will have to accept your mistakes, some humiliation, a great deal of frustration and forgive yourself when you feel you have let yourself down.
You will have to realise that nearly all - if not all - your previous knowledge of life and 'dealing with the system' is useless, and you will have to start again from the very beginning. In this part of France, you often have to fill in forms with your surname first, and my 11 year old son had to learn to write in the French version of joined-up style, rather than his natural English style. Even the alphabet has 6 vowels (a e i o u y)!!
You have to face life each day with a smile and a 'bonjour' - it's very important to adapt to the local way of living (here every shop closes for lunch between 12 and 2), and if you can't speak French, use your hands and imagination and sign up for classes as soon as possible.
The health system is different. Not old-fashioned or inefficient, just DIFFERENT.
The education system is different. Children who do not do sufficiently well during the year stay for another year in the same class. Teaching styles are much more formal, school hours are longer and not all schools follow a 4 day week. Things are DIFFERENT.
I guess I'm trying to say that it is too easy to compare the systems in terms of your previous experience. It doesn't help the actual 'here and now'. Just makes you miserable. It's important to be open-minded.
Your favourite recipe may not work here even if the ingredients are the same (according to the label on the shelves), and you may find yourself missing certain foods and dishes .... OH for an Indian takeaway, or even an Indian restaurant .................
The friends you leave behind will never really enter into your lifestyle. They think because you are here that you are on permanent holiday. No such luck - you have to do the supermarket checkout queue just like them and wash and clean and ..... Even when you meet up, they will not understand how you live and show limited or no interest. (They can't because they haven't experienced the day to day life for themselves.)
You can only take part in a limited measure in local and national politics - you can only vote in European elections, for your local mayor and that's it.
Lots of important positions in the community seem to be run by the same individual or members of particular families.
At first you seem to be drowning under all the red tape - needing to show loads of documents before you can even have a library ticket!
All your familiar TV and radio programmes disappear and you feel out of touch ...................
If you have any skeletons in your cupboards, they won't go away because you've left the UK - they follow doggedly on your trail.
You have to pay tax on both your English income (interest, dividend warrants etc) and your French income .... AND as there's no PAYE system, and for the first couple of years you have to pay it all in one go, you can have real financial hardships if you do not budget accordingly.
It seems to take forever to make small breakthroughs in your language skills or coping skills - but it DOES happen. Don't give up.
These are most of the negative things that might happen. But there are so many good and positive things to living in France, if you are prepared to really work to make yourself integrate. It's a poor life if you spend your time here in an English ghetto (and they DO exist!!).
Talk talk talk to your family and partner before you come and when you are here. Don't let possible worries become overwhelming. Try to avoid French-bashing ... it may not be England, but that's why you came here! There is always help available if you can humble yourself to seek it.
Sorry if that sounds rather harsh, but folk are not mindreaders and you will need to show and say that you have a problem if you want to solve it.
It is not unusual to go through various emotional stages after a move to another country and culture. I wish someone had told me about this before I came: 'Culture Shock -France' was a book that dealt a lot with moving to Paris but helped me greatly with this aspect of moving, and you should give yourself at least a full year in your new home to see how local life changes with the seasons.
Prepare for your move and live life to the full once you get here - but don't be afraid to ask for help! Now I certainly wouldn't live anywhere else!