Soooo, I'm about 4 episodes from finishing the season...and from reading what's here, I kinda think I'm just gonna skip it. I'm not, however, surprised at the reaction to the show. Basically, Dexter was an AMAZING first season, a decent 2nd season, a really good 4th season, and everything else has been crap or mediocre at best. The writers, especially after Season 4, were just not up to the task.
This is a shame, because the cast is INCREDIBLY talented. I actually do think that Desmond Harrington could carry his own show, but probably not as Joey Quinn. He's a TERRIFIC actor, though, as evidenced by his performance on this show in years past. They guy definitely has range.
At any rate, much like the Sopranos, this show seemed to start strong, then fizzle. I never watched the second half of the Sopranos Season 6, and I doubt I ever will. I think I'll just skip the end of Dexter, given what I've heard. There's other, better TV to watch.