Over a week ago I finished the 4th season of Breaking Bad. My initial reaction was one of amazement at how great they were able to wrap that season up. I've had some time to step back and think about it, and I am still impressed with what they were able to do over the last 3-4 episodes.
From the beginning I've watched all the seasons in bursts of 2 or 3 episodes at a time. I never had to wait week to week. There were times at the beginning of season 4 where the show seemed to spin it's wheels. I didn't notice the effect much because I could blow through it so quickly. If I had to wait a week between each episode for ep. 3-8 I might have gone crazy. The show was never bad, but there was a lot of stuff that felt like "filler." Walt was MIA though much of the first half of the season. I mean, he was on screen, but he didn't seem to be doing anything. I had no clue how they were going to wrap it up, but they did an excellent job.