According to NME, during a press conference in London, Carrie Fisher talked about the differences in working with George Lucas and J.J. Abrams.
She said: “He [Abrams] was great to work with. George Lucas was wonderful to work with, but he never spoke really. He just said ‘faster!’ or ‘more intense!’. But [J.J.] talks a lot and it’s really good stuff he says. And he’s got a lot of energy and we didn’t have any energy on the first film. It’s sad, really.”
Harrison Ford added: “It helps a lot to have someone who gives as much as J.J. gives. This is besides directing…. the human kindness that J.J. brings to the set every day is part of what makes the movie what it is.“