I think generally most of the two-parters have had over-simplistic, rushed conclusions, whereas I've felt that all the 4-parters have been fairly satisfying. A few of the shorter stories have worked well but mostly it has felt like they've squandered some really great ideas. The one-shot redshirts springs to mind as a really well done shorter story so it does depend on the material but for sci fi, I think one issue to set up and one issue to conclude leaves little room to tell a decent story with any character development. We end up with a story that is about character development or we end up with a brief sci fi story and I think that those elements work better if combined in one longer story most of the time. As far as this story goes, we only scratched the surface of the new character with almost no exploration of the sci fi elements beyond brief peril. It was enjoyable enough but I was hungry for more. Loving the artwork though.