I don't really write normal type reviews and I'm really not going to try. So I think my thoughts on shows like this will just resort to a few things I have to say and that is it :) More fun for me that way.
I really liked Kara in this episode and they gave her a nice fairwell. One of these days I'll write up a long thinky post on Kara and her terrible handling last year. I never could get behind her because of it. But she was great here and used in a way that highlighted Clark. I wish we would have had this Kara last year.
Naturally, I adored the Lois and Clark stuff. And Clark has feelings for Lois. Aw. Of course we already knew that ;)
Erica was really good as crazy phantom lady. Creepy scenes there with Davis.
Chloe was cool. Loved freaked out Oliver. Loved the Oliver and Clark scene. I don't even know what to say about it but it was good.
I've loved Clark in every episode so far this year. I don't care what anyway says: TW makes an awesome Clark Kent.
I think that's it. SV is doing really well this year with continuing threads. Keep it up, Smallville :)