Jazz is fun as a very upbeat, introspective, friendly person. I like that he talks to people both in Niflheim and Asgard and has made his opinions about this world very clear.
I think...a bit like Vader, I know he is a powerful character, and I'd like to see more of that. I know not many can compare to him in regards to his amount of power, but I wonder if there's some way to encorporate it in there more.