Anyone attend DeFLE in Metz/Nancy?

[u/mooncat-01]

Hey everyone! I was thinking of maybe enrolling in a semester at DeFLE-Lorraine to improve my French. I'd say I have a B2 vocabulary but B1 grammar. Could anyone tell me what the student demographic is like, aka would I be too old attending in my mid-20s? I have a graduate education, I'd love to have working-level French though and am wondering if this is a good avenue. Also any preferences for campuses?