I was raised with wolf hybrids, crosses of german shepard, husky, and another wolf breed. Most of our "dogs" came from Canada. They did awesome with us 5 kids and all our friends, as long as they left the hats off with our last one. They were protective of our vehicles, they rode in the back of our pickup, and house. They weren`t aggressive but stood their ground, if a person reached in the back of the pickup Cinnamon(german shepard/wolf) did snap but as a warning, she only growled if you had a hat on. One wolf was inbred and had seizures, but she would escort us kids around the yard by holding our hand and had to be put down because her seizures were increasing in frequency.
Each hybrid will have different temperments, the owner, exposure, experiances and training do have a large part in the making. But the parent's mentality has a good chunk to do with it too, but I am in no means an expert on wolf hybrids, all I have is the ones in my memory to go off of. In my opinion if you want a hybrid, get the yard and the fence secure well before you start looking. Be prepared for the rude people, they come in flocks; that is why our hybrids were never hybrids, they were husky crosses. Please make sure you are prepared to handle the animal and get it altered, unaltered adults are more like TNT than an intact adult, and if you choose to get a cross with a mastiff the battle of wills will be epic.
It took 3 years for Mom to get the shepard hybrid to listen to her, our "pack order" was Dad, us kids then Mom; she was a small hybrid and my Mom couldn`t walk her, only us kids could after the divorce. With her everyone was welcome if they came in the front door, you could also walk by the fence and get 1 bark, but you peek over the 6 foot fence she would go nuts barking. When they moved to the farm she started meeting vehicles down the driveway barking, no matter who it was, including the school bus. When I came home from being gone for 5 years, she ran up and almost layed me out when she jumped on me. When we were younger she chose to "get" us older kids from the school bus, she tracked us the 2 blocks to the bus stop and was sitting there when Dad found her, she had jumped the fence using the toybox in the breezeway to get out. After the divorce if any of the kids left the house she would sit at the door waiting for their return, if we left the yard she would wait by the gate. With Dad being a longhaul driver, she got in the habit of sleeping in the hall at night, layed under the table on our feet during meals.