I think the series is really coming into it's own. The pacing and dialogue was really snappy and naturalistic, and the story moved beyond the standard "hear about artifact in Act One, look for artifact in Act Two, find artifact in Act Three" pattern. Joanne Kelly showed some real acting chops (among other assets) playing Myka/Alice, and Pete seems to be moving beyond generic wisecracky guy, turning into somebody who really does lead with his emotions. And of course, Vegas really felt like Vegas, which is nice.
One pleasant surprise: the show appears to be surprisingly solid in terms of continuity and consistency: Artie is still wounded and still worried about MacPherson, Myka is still (rightly) pissed about his tendency to keep secrets (a good sign that they are aware of this), Claudia is restless as we might have expected.
It's not Shakespeare, but I'm enjoying it.