Withdrawls from emar markets

Hey all, 

Aplogies if this post is in the wrong forum as I am new here.

I wondered if anyone has any good/bad experience with emar markets? Obviously they are unregulated so mindful that I don't want to put large deposits on it, however I've been invited into a really profitable copy trader (private group) and he uses emar markets - anyone have issues withdrawing at all?

Any recommendations to remain safe etc?