I have a Yorkie and am interested in a second, but am considering a Biewer. There isn't a lot of information out there, and most is conflicting. Can someone give me info on the traits of this terrier (gosh knows we know what a Yorkie's are!!) and what to look for in the breed? Seems there's only a few true breeders in the US and the puppy would have to be puppy nanny delivered. HELP!