My step kids are good and seem to try hard. My husband though, becomes like a different human when they are here but he doesn't see it. He is either 'fun time daddy' or 'shouting daddy' and he will NEVER ask them to do chores. 
I don't feel included and the decisions tend to be made by thier mother and my husband. I have tried to challenge things, but then i simply get targeted for the shouting.