Produced by the French Civil Aviation Authority to ICAO standards
Hmmm... not so sure. The official French charts are the
1:1M SIA ones, not the 1:500k IGN ones referred to in that advert.
The IGN ones got a bad name in ~2003 when they failed to show the nuclear power station prohibited zones for about 2 years. Also they show no airspace above 5000ft AGL which, given the freedom in France to fly VFR to FL115, is pretty limiting. I used to fly with them.... pretty but not much good.