You do not want a German Shepherd.
I repeat. You DO NOT want a German Shepherd.
And you definitely do not want a JRT x.x
Here, here's more info!
The following is a highly useful resource for the GSD enthusiast and describes the breed in extreme detail
Illustrated GSD Standard by Linda Shaw:
http://www.shawlein.com/The_Standard/Index_Page/Index_Page.htm
When people first start shopping for a dog the first thing they look at is, of course, what the dog itself looks like. This is completely normal, as humans are extremely visual and upon first glance one knows whether or not they appreciate what they are experiencing visually. The German Shepherd Dog is an extremely striking animal upon first glance.
Unfortunately many people purchase or adopt one of these dogs for the wrong reasons, from the way the dog looks, to their memories of the breed as a child (memories that are often false and exaggerated by a different perspective at the time).
So, here are some things to consider before you commit yourself to an unwavering friend for the next 10-14 years.
What kind of temperament are you looking for in a dog?
The German Shepherd Dog is a steadfast, noble, loyal companion. They love to be with their people and are highly social within their own family. However, they are also a breed that is quite aloof and intelligent, so if you want a dog that will fawn over everybody, it is best you look elsewhere. The breed standard itself states: The breed has a distinct personality marked by direct and fearless, but not hostile, expression, self-confidence and a certain aloofness that does not lend itself to immediate and indiscriminate friendships.
Please note that aloof does NOT mean "unfriendly". Aloof in its most base interpretation simply means "disinterested". The German Shepherd Dog will not immediately "take" to every person it meets in its life. If a certain person is around the dog long enough, the dog will accept that person as one of its own (to a certain degree) and will be met with a tail wag and perhaps even some licking, but otherwise this breed only tolerates strangers, and is not interested in forming any sort of friendship.
Please also note that this is the description of a fully matured (mentally and physically) animal. It is normal for puppies to want to run up and say hi to everybody, and this should be encouraged in a youngster. You will not ruin the "protective instinct" of this breed by socializing the dog properly. In fact, it is in the best interest of the owner, the puppy, and the breed for the puppy to be well socialized.
What kind of personality are you looking for?
Personality is an extremely individual thing, but just like temperament, personality can be generalized to a degree. This breed can exhibit "silliness" within their family unit, but overall they are a very serious sort of dog. When it's time to work, the dog works, when it's time to play, the dog plays....but still with a business like air about it. Like any other breed, they can get the "zoomies" and act out of sorts, and they will make you laugh, but they do not exhibit near the antics like dogs from the sporting group, and will often give the impression that they are "above" an action being asked of them.
How much do you care about shedding/grooming?
The German Shepherd Dog has a thick double coat. That undercoat (which is feathery looking) generally sheds out twice a year (some dogs do what is called "rolling Coat" where undercoat perpetually rotates), but the topcoat (the hard, coarse hairs) sheds year round. This breed's nickname is the "German Shedder". If you do not like a lot of hair in your house, consider the fact that you will need to vacuum often.
The good news is that even with the double coat, this breed is basically "wash and wear". A good bath once a month or once every other month is enough to keep them from getting grungy, and taking a slicker brush and pin brush to them 2-3 times a week significantly cuts back on the hair in the house.
Recommended tools for grooming:
Pin Brush
Bristle Brush
Slicker Brush
Undercoat Rake
Shedding Blade
Scissors
Nail Clippers/Nail Grinder
How much exercise are you willing to give the dog?
This breed can be very demanding in their exercise requirements, as one of their jobs was to work all day long with a herd of sheep (upwards of 200 head) and keep them within a boundary. The dog was a living fence and would cover several miles while doing its job.
They are not only physically demanding, but mentally demanding as well. The mistake that many people make is that they jog the dog 6 or 7 miles next to a bike, but don't understand why the dog is bothering them 2 hours later to do something else. The answer is that the dog isn't tired. They were temporarily worn out physically, but jogging is a mindless activity. It is extremely easy for a dog to just zone out and go through the motions, as no thinking is necessary in order to maintain their gait.
They thrive on puzzle games, and love to learn (in fact, their learning often gets them in trouble). That brings up the next question!
What kind of training level are you looking for?
What does this mean? Well, do you want a dog that is easy to train, or a bit of a challenge? Overall this breed is very easy to work with because they are what many people like to call "eager to please". What that really means is that the dog is highly biddable. The dog wants to work with a person because they know that the person gives out the rewards, and that is highly reinforcing to the dog. The German Shepherd Dog is, as a general whole, an extremely quick learner, which makes house breaking and basic manners training a snap (this can also make them good for a first time owner).
While all dogs go through the adolescent stage of giving a person the "doggy finger", eventually the German Shepherd Dog comes back to wanting nothing more than to spend time with their person.
Are you looking for a velcro dog, or an independent dog?
The German Shepherd Dog is most DEFINITELY a velcro dog! In fact, the first couple years of living with a Shepherd can be highly frustrating because they want to be with you, near you, or ON you almost ALL of the time! The days of going to the bathroom alone are OVER!
The breed is also highly prone to separation anxiety, but when one takes a look at their history, it is not surprising. These dogs have been bred to do jobs that involve them working very closely with one person (which is another point...if one wants a family dog that loves everybody equally, look elsewhere, because that is not how a GSD works). They were born and bred to be loyal to one person throughout their entire lives, so while they tolerate others, and can be trained to obey the command of others, they make it very clear who "their person" is (and there is absolutely no mistaking it).