It's not a bad deck, but Fabien Defaucheux is claiming this as his own unique design. It's really just a reprinting of a very old French deck in the Parisian style using a new color palette. He designed the back, but it's primarily just a stylized "F".
That's not to say it's a terrible deck - just that the designer is overreaching in his claim.
One major problem is the pricing. A single deck with shipping outside of France is €13. For two decks, it's €20. At the current exchange rate, €13 is US$17.58, €20 is US$27.05. This applies to ANYONE outside of France, even other countries in the EU/Europe.
The other major problem: if you consider that the indices are in French, it has strong appeal only to Francophones and French-speaking countries. Americans are terribly stubborn about what they think a playing card deck should have in it!