To the "reviewer" who posts "reviewing" the episode before it airs, some of "we" would rather have Jon Cryer as Lex. He's the best thing on the show currently, and tonight is no exception. The Kara/Lena relationship was old-hat last season: it hasn't improved substantially this season, except they've reconciled their difference.
As for whether a writer reads opinions, it probably depends on whether you actually use the review section to "review" the episode or not. :)
As to the episode itself, the Lex/Lena and Lena/Brainy scenes were good. But do we really need a _tenth_ main character? Three of them couldn't show up this week, and so they added a tenth?!? I wouldn't mind, but she doesn't add anything so far to the show.