I don't know what people are looking for in this show, but I thought this season was really good. It was certainly better than last season, where Julia Stiles absolutely sucked every scene, and Colin Hanks and Olmos were fantastic.
Someone mentioned the writers "obviously had no clue what they were doing", well that's false, they actually had all the events planned out from the very beginning.
And as far as Deb goes, while I think the "incest" storyline is a bit ridiculous and not needed. A) it is certainly something that can happen in real life, especially considering the fact they have no blood relation, and B) integral to the storyline leading up to her finding out about Dexter and where her feelings and her discovery take her.
And, as far as I can tell from reading about the show and the upcoming two seasons, unless I am missing something, they are planning on the show wrapping up with Season 8.
The scenes with Colin Hanks and Michael C Hall were not even anywhere near the quality of scenes with John Lithgow or Jimmy Smitts. I dont really remember too much about last years villian but I know I hated him. I didnt really hate Travis until he kidnapped Harrison. All the season had was the twist and alot of people figured it out beforehand. If you figured the twist you were left with a subpar villian(s).
As for the Deb story
1. Its so bad it almost retroactively ruins previous seasons
2. How is it intergral to her finding out? She could and should have found out last year and it would have been far less anti climatic and far more tense of a scene.
The show manages to still be entertaining because of Michael C Hall who does an amazing job. The writers are doing a very poor job and its shown in a number or ways.