I didn't like the ending. It seems to have gone a bit too far....but, this show has so far had great writing, so if they can make it plausible in the next episode, good on them.
I've felt that the last couple of episodes have started to delve into the fantastic, and for a show that was always so "real", I don't much like it. Jesse finding the sister of the kid that shot his friend, and then their boss is the same as Jesse's boss, I dunno, seems a little too convenient. But, then again, maybe that's how this shit works. I dunno. I thought the Tuco stuff was ridiculous, but that turned into awesomeness, so let's see how they handle it.