Based on their website, this isn't a breeder who would impress me, for several reasons.
First, they have a lot of talk and a lot of pictures, without much actual substantiated information.
What does "Top European Bloodlines" mean, precisely? In whose opinion?
Have they entered into competition with other animals, and won, under judges in different venues? Or is this just their bragging talk?
They mention health testing, but they say "may" also be tested for "Hard Cardio" [sic].
I myself would never give purchase money to any breeder who wasn't trying to make sure every animal in that pedigree had complete cardio testing, and not just a "may have."
In your research on the breed, did you happen across the Guelph cardio study? The one that is showing about 50% of all Dobermans will die of cardiomyopathy?
We really need breeders to step up and lower those stats--stats that represent a lot of heartbreak and a lot of vet bill$.
There's more--on the below linked page, they seem to be bragging about how large this male is, but he's plain unfit and frankly--pig fat. I normally don't get into dissing the dogs, not their fault, so please take this in the spirit intended--which is I'd feel uncomfortable having someone as a mentor and lifetime support...who does not even know how to recognize his animals are at an unhealthy weight.
Fat dog: Los Angeles doberman Dogs & puppies For Sale
There are several links around the forum on what to look for in evaluating a breeding program, what questions to ask, which health clearance documents to look for, etc.
Good luck--because the whole "Euro Bloodlines" thing has become SUCH a greeder marketing gimmick, and the few actually reputable Euro breeders are nearly like needles in a haystack.