So there's a jiu jitsu class thing near where I live and it's by the looks of it a Demian Maia student teaching the classes. Do you guys know any of the sort and can tell if it's a good place to start training jiu jitsu? Thank you! https://www.youtube.com/user/DemianMaiaPortugal This is their youtube channel, Vitalino Silva is the teacher. Many thanks.