Unfortunately, I can. If one isn’t super-knowledgable about pure-bred dogs (and many are not), the puppy mill breeder in disguise can make it sound very attractive to own a high quality dog of the breed the person is looking for at a reasonable or no cost for just allowing bitch to be bred. And that lovely word ‘Guardian’… who doesn’t want to be ‘guardian’ of their dog rather than an ‘owner’ or co-owner. Guardian sounds so much more touchy feeling for today’s society.
At least OP is asking which is good. Many won’t because they don’t know better or know where to ask or to know that this strategy should raise some red flags.
OP, I hope if you have additional questions, please feel free to ask. I think we all want to help you make the best choices possible for both you and your upcoming puppy