Review work for both HDMS and the French office.
bad management behaviour
harassement is common among manager
work atmosphere is depressing (people aren't happy, specially in the French office)
Note: a few years ago, after an internal survey in the French showed resentments from a signicant number of employees, the management has been audited (w/o real results) and the communication department has "strongly encouraged" employees to publish positive reviews on Glassdoor to improve the global score.