It was great until the good guys' plan fell apart at the end. Really, Kara? You need to talk Rhea down one more time? Um, no.
Of course, that might have killed Clark, but she didn't know that. And ya know what... I could live with a dead Clark in the Supergirl-verse. At least it would stop people from asking, "Where's Superman?" every other episode.
Cool that Madam President is a Durlan. Glad she wasn't a White Martian after all.