TS and his family is simply amazing for taking in that injured dog. That being said you're going to love Catahoula's
Mine is about 18 months old and I couldn't be more pleased with him.
Yes I have other dogs, but Rocko is my favorite for different reasons.
Here's what I know about the breed from my experience with Rocko. They're working/herding dogs and have an insane drive. Rocko is almost never really calm at least until bed time. Once he's in his bed he gets pretty mellow.
They're very loyal and protective of what's theirs, ie you and your family. I view this as a good thing.
Rocko has been a natural guard dog since he was a puppy. I first noticed it when he was about 4 months old. We were sitting out back with him and he heard someone walking down the sidewalk near our apartment. He started growling. Until this point I hadn't heard him growl and it was kind of cute being he was so young. But the crazy thing is... he turned his back to us and backed up until his back was right in front of us.
Something similar happened out back when someone was trying to start a motorcycle. It was only about 50 feet away on the other side of our back fence when all of sudden it back-fired, very loudly... 3 of our dogs ran in a circle then promptly hid under chairs like you would expect a dog to do. Rocko on the other hand jumped into the grass in the direction of the noise and flex every muscle in his body straining to sense where the attack was coming from.
I swear it was the most amazing thing I've personally experienced with a dog.
Catahoula's are bred to herd wild pigs and I can see that in him as he isn't scared of anything.
On the other hand, I consider him to be a "dangerous" breed. Like a pit, rott or GSD. and I treat him as such. He's completely dominated at all times so that I know I have control. Now I know there are different variations of Catahoula's so that might not be an issue for you.
Kids, Rocko LOVES kids and babies... gets along great with my two boys and loves giving the little ones kisses.
All I can think of right now. I just know this is my all time favorite breed after learning about them. They're beautiful, strong, intelligent, protective, loyal, and would probably die for their owner.