Well my husky is a complete character, she's about 20 months old, and the hunting instinct is there with her. Birds seem to be the favourite thing to chase round. She's had 2 pigeons in the last 6 months and both were caught in midair.
But she has a really nice side to her, will lay on the floor and let my daughter (1yr old) climb on her and sleep next to her, and if baby makes noise in night the dog is first to come and alert us.
They're very intelligent, had to put catches on things to stop her opening doors. They like to dig, my garden was full of holes, some just a few inch deep and others about a foot deep and big enough for her to hide in!! If you've got a garden, a good fence is essential as they can climb and jump quite high! Mine can clear the 4-56ft fence in front of house fairly easily. Back fence is 7ft and hasn't tried that one yet!! I've heard of people having them with cats for years and them being ok, but then i've also heard they can just turn straight away.