Hill Brothers in Illinois?

Anyone train here or heard of these guys? Didn't realize they were black belts in BJJ. Haven't seen to much of them or their school on the tournament circuit. Just wondering how the instruction was.

www.hbjj.org

Looks like they used to be HCX (which I've heard of) & now call themselves Hill Bros.

I've seen guys from HCX in local MMA events, but not many in BJJ tourneys. I live 10-15 miles from their school & don't know anyone who trains there. Not much info out there.