I thought it was a terrific start to the season on almost all counts.
Everyone acts like the events of last season just happened, except for Quinn, whose girlfriend might have admitted she was a murderer right before committing suicide in front of him 1,000 years ago. There's a reason none of that's in the previously on montage. Second, I have a minor worry that the writers are going to treat the bathroom murder as trivial. I hope not. Dexter killed an innocent man in an emotional rage, with disregard to any witnesses being present, and in a way that must have DNA evidence everywhere.
I'm also worried that Angel will continue to have little or nothing to do. The writers are doing the best they can to follow up on the ill-advised marriage subplot from last season.
Finally, I noticed that at least two writers from 24
(Manny Coto and Chip Johannessen) have joined this serious. It's hard to know what effect they'll have on the long run of this series.