To be honest there is no real way to tell. go to the sit you listed, go to the forums, they are all telling you the site is fake and the owner did not rebuke any of the comments. this leads me to think it is fake, look at AM for instance, when the no chip method was posted all kinds of people flamed admin, stating that it didn’t work, but it was our members who know it worked that stood up and stated the facts, with this, all there is is a bunch of people saying it is a scam and no one stating that it works, I don’t think that patching the firmware will unban the xbos. they are banning Xboxes for modding the firmware, do your really think remodding the firmware would fix the ban??
The video has a edit or two in it====fake
The Xbox connected, but he did not sign in a profile====fake
The web site owner has not rebuked accusations of it being fake---fake
I could be way off base, but I would conclude from what you have shown me its a scam.
I nominate you to buy one and lets us all know the truth...LOL I wont buy a piece of gum from that site!!!