It was good. Having Will undercover was kinda fun and, even though it's kinda typical TV, having him kill Allison was an interesting twist. I don't have a problem with him going back to Wisconsin. If the Covenent really wanted him dead, they would have found him. Why Sark thought he was dead just implies to me that he's an idiot, one that tortures his own father but an idiot nonetheless.
Not that it's that surprising but apparently "Julia" helped Lazerey fake his own death. Why, I'm still not sure. The fact that Syd apparently willingly had her mind wiped seems to imply Juila is indeed her and did something really bad.
The container of flesh labeled "Milo Rimbaldi" suggests to me that he predicted a time that cloning would be possible although why he thought someone would want to, I don't know but remember both Syd and Sloane appear in his journal.
Poor Sloane, Syd doesn't know Lindsey put a contract out on her. If I were Sloane, I wouldn't reveal this to her either since she wouldn't believe it anyway although Jack might...I honestly don't know where the device is. Maybe Lindsey really didn't give it up...