so good news: it all works. I just didn't flash the 3DS properly. Now the problem is stuff beyond my own control.
So for getting a no-fuss flash cart, It's good deal, especially if your going to do that stuff for others too. What I am concerned going forward is this issue i'm seeing with people's card's getting bricked, which is concerning, especially if you need to update the card's firmware.
I do hope that they get their act together and get their issues fixed, cause this is a great no-fuss card i'd recommend people to get into the CFW scene