Well, Smallville's back after the longest hiatur ever, so let's get down to business:
The Good:
Clois-It's just great seeing them together and I like how they are both approaching the relationship, Clark being very romantic but Lois wanting to take it slow. That kiss was magic, uhh, all their scenes were!

t:
Zod-For an Oliver centric episode, we got a good amont of Zod here and Callum was awesome. he is definately manipulating Clark. My favorite scene is Zod visiting Lois, so unexpected and the tension between them was great.
Clark-I was a little pissed that Clark seemed naive when talking to Zod at the beginning but in the end, I was glad he manned up: "If you go near Lois again, I will destory you all." Just AWESOME!!

I also liked he told Chloe that her obsession with spying is pathetic, does she have a life outside of Watchower?
Mia-I liked her here more than in "Crossfire".
The Bad
Chloe-As usual....no point in talking about her...won't waste my time.
Oliver-More Lois pinning? I thought he was over that? Not to mention he turned into
D@#che Arrow when he was with Mia.
Dark Archer-Not much of a villain. Why not call him Meryln, since he obviously is. Why did Oliver keep mumbling his name? Vortigan? Mortigan? Whatever...
Some plotholes-How come Clark didn't understand the symbol for Rao when he's known the Kryptonian language since Season 2? Why didn't Clark notice Zod's towers being built?
Anyway, I enjoyed it better than "Pandora", but it still was a filler. Not a great opening for the second half, but hey, we have Absolute Justice next week, so this was technically an appetizer. 7.5/10