Maybe I'm just easily amused, but there wasn't an episode of the series that I didn't like. Perhaps under a more critical eye there are issues to nitpick at, but there wasn't a moment I felt at all disappointed by plot points, characters, mysteries, or "filler".
This series is more interesting in even its so called "bad" episodes than ninety-five percent of the crap on network television, and its only going to get better from here on out.