Moving to Lyon with family - schools

Hi everybody,

I will be moving soon for business with my family (first just me and family to follow in summer) to Lyon. To be honest I do not know Lyon at all apart from the airport.

We will have many questions (I have a separate post on housing), but mainly about any kind of experiences with the international schools and any montessori creches.
In July our kids will be 9, 7 and 1 year old. The older one's have been attending the British school in Warsaw, at home we are speaking German with them. From internet search there seem to be 3 options including the International school, Ombrosa and CSI. Anybody with any experiences. CSI and Ombrosa seem to expect more French knowledge, which the kids currently do not have.
However, maybe that would be forcing them to learn much faster.

Thanks for any tips,

Peter