Copperhead is legit. You'll find an assortment of skill levels among the members and they are super focused on welcoming new people in.
Coaches all have a different "flavor," so you really learn something new each time. As someone who wants to know every minute detail of every movement, I always get great feedback from all of them.
It's fun to workout with people who get stoked bout seeing someone hit an overhead squat with perfect form and not the amount of weight they had on the bar. We like weight, but we like function even more!
Super fun box in a great community.