There is soooo much wrong with the dogs on that site that I don't even know where to begin.
But seeing as how I'm much more versed in the APBT, I can promise you that the 92 lb "pure breed" 'pit bull' they own is a mixed breed dog in itself that is paper-hung. Not to mention that the only people touting a "pure breed Blue Pit Bull" are the ignorant/uneducated who know nothing about the dogs.
As for the Mastiffs, knowing what I know about them as a vet tech (in terms of health), I see absolutely nothing about any kind of health testing such as for the hips and elbows and many of their dogs seem highly overdone.
And that Mickey Blue Eyes dog just makes me cringe. His shoulders are downright horrid! I wonder what the hell kind of dog he is supposed to be.