Welcome to the board! From the website, I can't see anything that I would personally look for in a breeder. The breeder allowed you to pick your puppy and you are not experienced, so how will you know if you picked the puppy that will grow into a pushy, dominant dog that will push your buttons every day or a puppy more suited to a beginner? A good breeder will have a better idea of this but an outsider to the litter will have a very slim chance of picking right. They have white dogs which is not an accepted color in the breed and breed them, they seem to breed oversized dogs (they advert one as 120 lbs!! WAY TOO BIG- that is totally outside the breed standard), there is no information if the studs and bitches are OFA certified, they breed three breeds (I think that's pushing it- it's hard enough to focus your monies and energies and time in one breed, harder still with two, and now three?!), so personally and ONLY from the website, I would not look at them for a puppy. Now a lot of breeders aren't web designers so they could be a lot better than the website shows.
But they do do agility with their dogs and some other things which is good, but I'd like to see much more. Your puppy is beautiful, but she does have weak pigment in the tan so no, not good color, but it's still a very pretty color. I'd say she is a black and silver which, though faulty, is very nice and I believe there is a photo thread on here with people posting their black and silvers. Just hope that she does not grow into a 100 lb monster! GSDs should be around 70-85 lbs on average, give or take, and should be about 24"-26" (26" being the MAX) at the shoulder. This breed has many health problems, especially joint issues, so smaller is better! Make sure you feed her a quality food, maybe an adult food rather than a puppy food; if she'll be a biggie, then you want slow and steady growth.
Hanging out on this board will definitely teach you a lot about the breed. Come on in and read up and if you have any questions, post away!