You might end up with condescending managers, people who are really good with numbers but unfortunately not good with people, let alone people from different cultures than their own.
Speaking of culture, there is a culture of lying, omission and tricking (employees, clients, photographers, whatever gets the job done).
As an employee, you are not paid to think, your input is not valued. They have hired "experienced managers" for that. If you are at the bottom of the food chain, you pay for your superiors mistakes always.
Your chances of progressing within the company are really slim if you are not French. If you need a visa to stay in France, you are not in a position of power and they will strongarm you and string you along on the promise of a permanent contract.
Human resources is a nightmare, you can never get the information you need and are usually told to seek out third parties when actually, it is part of their job description. This is with the exception of the hiring manager who is a decent person.
The salary most of the time is not in accordance with what you have to do and what is expected of you. Essentially the pay is a joke.
Working hours are also a joke. Mainly because it is frowned upon to leave on time, and yet extra hours are not remunerated appropriately as they should.