Too many convenient logistical details. As I recall:
— The Gray Matter couple apparently don't subscribe to a security monitoring service.
— Super-nervous Lydia owes her demise to being written as a repetitive cartoon character (and the bizarre Deus Ex Ricin).
— Skyler's apartment has some weird pillar in the kitchen which allows for dramatic camera shifts.
— The Neo-Nazis not only allow Walt to drive his car into their compound and park it how he wants, they don't check the gigantic trunk (bomb, maybe?).
— Walt is hit only once in the machine gun barrage, lives to keep acting and finish the episode.
— Todd and Jack survive, as well (but no one else), for a trite dramatic payoff.
Then to address the great revelation that Walt actually cooked meth because he enjoyed it, not for his family's benefit — this really makes his getting so chewed up over Hank's death much more difficult to swallow; and the price he paid for his attachment to Jesse further makes no sense. Additionally, the Ricin should have been used much earlier... on Marie. Never once did I ever believe Walt was "evil," but rather purposely written to be as morally conflicted as possible.
All in all, if you think about it, this series was carefully constructed yet a nonsensical mess. If you only *feel* about it, it was probably great.
_________________________ "The trouble with being a ghost writer or artist is that you must remain anonymous without credit. If one wants the credit, one has to cease being a ghost and become a leader or innovator." — Bob Kane