Some GSDs make ok dog park dogs, most do not. Their play is quite rough and can quickly escalate to a telling off. If your main exercise will be based around going to a dog park, you might want to look at other large breeds that fit in easily with other dogs in enclosed areas, there are many to choose from but the breeds I have seen that make great dog park dogs are Labs, Golden Retrievers, Weimaraners, Ridgebacks, Boarder Collies and quite a few mixed mutts as well.
In the first week or 2 of bringing puppy home, you will need to take him toilet after eating, drinking and waking up. If you feed him and take him out for toilet before you leave to go to school, then you might be lucky with no accidents within 4 hours, otherwise leave some paper or urine mats in an area. My 2 GSDs are 3yo and 5yo and I can leave them for 8 hours without access to toilet.
My experience with barking is that they will only bark if there is a reason to, if they see someone walking past their property, or hear someone etc. Otherwise they are generally not the sort of dogs to bark and bark and bark, but again, as long as puppy is well fed and exercised (not over exercised) then they do sleep a fair bit during the day.
I think GSDs can live quite happily in an apartment, so long as they receive adequate exercise, preferably morning and evening.
They are a wonderful dog, and good on you for doing your research, far better to really look into which breed is right for you than getting a particular breed that you become attached to and further on realise that you made a mistake.
if your GSD is eating and eating and eating and losing weight - please consider testing for EPI.
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.