Any reviews on Cinquieme Sens courses?

I'm invested in perfumery and I want to learn more. I'd like to find some in-person classes within the next year-ish. I'm based in the US, but I'm willing to travel. I was looking at Cinquieme Sens' courses in France, but I can't find many reviews on them. I was wondering if anyone has any experience with them?

The course I'm most interested in is the 2-week Fragrance School in Grasse, coming up in October. It costs a little under $6000 in USD. I'm willing to invest in perfumery, but I want to make sure I'm investing in the right places. I'd love more information on the other courses they offer if anyone has done those courses.

I would consider myself to be in the early stages. Would this course be suitable for a beginner?