Oh my goodness. He is adorable!
I have ended up with two cryptorchid (only one testicle) GSDs over the years. Since I don't show or breed, it has never affected my decision on whether or not to get a puppy. They were great dogs and I never regretted having them. If you do decide to get the puppy, you should not breed him, and you should eventually have the retained testicle removed since it can be a cancer risk. Neutering will be more invasive and will cost more. I think there is also a slightly higher risk of testicular torsion until you get the dog fixed. Some people say that testicles can still descend until a pup is around 4-5 months of age (I forget the exact age). I wouldn't count on that happening, but it is possible I think. His size and proportions look fine to me, but I'm not an expert.
Last edited by sebrench; 04-02-2018 at 02:43 PM.