I enjoyed it. It flew by quickly. I had two major issues with it:
1. When the cops roll up to the vacuum cleaner shop they would have been looking inside the glass door from the car and seen two people inside the store.
2. The shoot-from-the-hip shot to welder dude: You would have a better chance of winning the lottery than him making that shot from his left hand (Pinkman is right-handed) as he has the pistol pointed down when they were speaking. It's entirely unbelievable that he could jerk it up and be that accurate. If only one shot had hit his torso somewhere and then he used the second gun right-handed to finish the kill, it would have been more believable. Heck, to even make five shots in that grouping inside a jacket pocket right-handed would have been extremely difficult too.
I'd expect much more attention to detail from Gilligan.