Regardless, even after getting my eyes screwed out by how the writers ended Lost and Battlestar Galactica, I fully trust the Breaking Bad writers not to disappoint.
What is amazing about this show is how it takes you on this journey from loving the character of Walter White, then starting to question him, and then hating him while some part of you was still rooting for him. Friends that I know who watch the show all have different points at which they gave up on WW and said, "Ok, I hate him". For me it was when he sent his elderly neighbor into his house to see if people were in there waiting to kill him.