Their site looks pretty legit for being an off-shore scam site.
Proper English and everything.
I'd have been fooled if I stumbled upon it from a Google search.
Yeah, their grammar skills are pretty impressive for Chinese scammers, but there are some clues in the usage and syntax. This is my favorite: "You release the creature's ferocity with a thumb stud." That's not a thing people say.
Thank you all for posting your bad experiences. I have to admit, I was pretty tempted by a $117 555-1 Griptilian. Then I googled Knifesilo and found this discussion. Thanks again.