i have a weim/husky mix, and let's just say he's been a challenge...I can't really say too much because he is a mix, so its hard to say what came from which breed, but at 4 years old he STILL acts like a puppy, and while he has calmed down a little, he needs tons and tons of exercise to be happy, so if you can't provide that I would say avoid them, but if you can, he is also one of the sweetest dogs ever, I trust him with anyone, he has no nervous tendencies, ie. not afraid of thunder or much of anything...he loves other dogs, is ok with our cats, but does not like others and will chase (and likely would kill) and most weims aren't good with cats...he is also extremely bad with chickens and ducks...(we no longer have them, but when we did it was not good.) he is also extremely smart and headstrong. he can learn new tricks in a couple minutes, but his recall is terrible...he knows you want him to come, but he just gives you a look and runs off in the other direction....so in a nutshell, they require a lot of exercise, firm training, and lots of socialization, but with all of this you can have a very sweet, and of course very beautiful dog. i would definitely recommend getting her out of her kennel for at least half an hour (more if possible) to really see what kind of dog she is. I volunteer at our shelter and you really can't tell anything from a dogs behavior in it's kennel. Get her out, throw a ball, see how she listens to you, and if she shows a lot of interest in you. And if you have other dogs make sure to bring them with you! Good luck!
edit to add: the person below reminded me that ours also gets out of anything! he is an outside dog with some indoor time, and he could easily clear our four foot fence, so we got a six foot fence installed, and while he can't jump over he has found many other ways out! He learned to open the gate when he was just four months old....